1
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Shao H, Ma ZH, Cheng YY, Guo XF, Sun YK, Liu WJ, Zhao YM. Bioinspired Total Synthesis of Cephalotaxus Diterpenoids and Their Structural Analogues. Angew Chem Int Ed Engl 2024; 63:e202402931. [PMID: 38527934 DOI: 10.1002/anie.202402931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/25/2024] [Accepted: 03/25/2024] [Indexed: 03/27/2024]
Abstract
Herein, we present a unified chemical synthesis of three subgroups of cephalotaxus diterpenoids. Key to the success lies in adopting a synthetic strategy that is inspired by biosynthesis but is opposite in nature. By employing selective one-carbon introduction and ring expansion operations, we have successfully converted cephalotane-type C18 dinorditerpenoids (using cephanolide B as a starting material) into troponoid-type C19 norditerpenoids and intact cephalotane-type C20 diterpenoids. This synthetic approach has enabled us to synthesize cephinoid H, 13-oxo-cephinoid H, 7-oxo-cephinoid H, fortalpinoid C, 7-epi-fortalpinoid C, cephanolide E, and 13-epi-cephanolide E. Furthermore, through the development of an intermolecular asymmetric Michael reaction between β-oxo esters and β-substituted enones, we have achieved the enantioselective synthesis of advanced intermediates within our synthetic sequence, thus formally realizing the asymmetric total synthesis of the cephalotaxus diterpenoids family.
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Affiliation(s)
- Hui Shao
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
| | - Zhi-Hua Ma
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
| | - Yang-Yang Cheng
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
| | - Xiao-Feng Guo
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
| | - Ya-Kui Sun
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
| | - Wen-Jie Liu
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
| | - Yu-Ming Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang'an Ave, Xi'an, 710119, China
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2
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Sun Z, Jin S, Song J, Niu L, Zhang F, Gong H, Shu X, Wang Y, Hu X. Enantioselective Total Synthesis of (-)-Cephalotanin B. Angew Chem Int Ed Engl 2023; 62:e202312599. [PMID: 37821726 DOI: 10.1002/anie.202312599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 10/13/2023]
Abstract
Cephalotaxus diterpenoids are attractive natural products with intriguing molecular frameworks and promising biological features. As a structurally unusual member, (-)-cephalotanin B possesses an extraordinarily congested heptacyclic skeleton, three lactone units, and nine consecutive stereocenters. Herein, we report an enantioselective total synthesis of (-)-cephalotanin B based on a divergent asymmetric Michael addition reaction, a novel Pauson-Khand/deacyloxylation process discovered in the development of a second-generation stereoselective Pauson-Khand reaction protocol, and an epoxide-opening/elimination/dual-lactonization cascade to construct the challenging propeller-shaped A-B-C ring system as key transformations.
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Affiliation(s)
- Zezhong Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710127, Xi'an, China
| | - Shuang Jin
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710127, Xi'an, China
| | - Jianing Song
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710127, Xi'an, China
| | - Lihua Niu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710127, Xi'an, China
| | - Fan Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710127, Xi'an, China
| | - Han Gong
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710127, Xi'an, China
| | - Xin Shu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710127, Xi'an, China
| | - Yunxia Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710127, Xi'an, China
| | - Xiangdong Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710127, Xi'an, China
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3
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Li C, Wang S, Yin X, Guo A, Xie K, Chen D, Sui S, Han Y, Liu J, Chen R, Dai J. Functional Characterization and Cyclization Mechanism of a Diterpene Synthase Catalyzing the Skeleton Formation of Cephalotane-Type Diterpenoids. Angew Chem Int Ed Engl 2023; 62:e202306020. [PMID: 37326357 DOI: 10.1002/anie.202306020] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/17/2023]
Abstract
CsCTS, a new diterpene synthase from Cephalotaxus sinensis responsible for forming cephalotene, the core skeleton of cephalotane-type diterpenoids with a highly rigid 6/6/5/7 tetracyclic ring system, was functionally characterized. The stepwise cyclization mechanism is proposed mainly based on structural investigation of its derailment products, and further demonstrated through isotopic labeling experiments and density functional theory calculations. Homology modeling and molecular dynamics simulation combined with site-directed mutagenesis revealed the critical amino acid residues for the unique carbocation-driven cascade cyclization mechanism of CsCTS. Altogether, this study reports the discovery of the diterpene synthase that catalyzes the first committed step of cephalotane-type diterpenoid biosynthesis and delineates its cyclization mechanism, laying the foundation to decipher and artificially construct the complete biosynthetic pathway of this type diterpenoids.
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Affiliation(s)
- Changkang Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Shuai Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, 252000, Shandong, China
| | - Xinxin Yin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Aobo Guo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Kebo Xie
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Dawei Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Songyang Sui
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Yaotian Han
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jimei Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Ridao Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jungui Dai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzyme and Biocatalysis of Natural Drugs, NHC Key Laboratory of Biosynthesis of Natural Products, and Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
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4
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Wang H, Liu Y, Zhang H, Yang B, He H, Gao S. Asymmetric Total Synthesis of Cephalotaxus Diterpenoids: Cephinoid P, Cephafortoid A, 14- epi-Cephafortoid A and Fortalpinoids M-N, P. J Am Chem Soc 2023; 145:16988-16994. [PMID: 37493585 DOI: 10.1021/jacs.3c05455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
The asymmetric total syntheses of cephalotaxus C19 diterpenoids, bearing a unique cycloheptene A ring with a chiral methyl group at C-12, were disclosed based on a universal strategy. Six members, including cephinoid P, cephafortoid A, 14-epi-cephafortoid A and fortalpinoids M-N, P, were accomplished for the first time. The concise approach relies on two crucial steps: (1) a Nicholas/Hosomi-Sakurai cascade reaction was developed to efficiently generate the cycloheptene ring bearing a chiral methyl group; (2) an intramolecular Pauson-Khand reaction was followed to facilitate the construction of the complete skeleton of target molecules. Our studies provide a new strategy for the synthetic analysis of cephalotaxus diterpenoids and structurally related polycyclic natural products.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Yi Liu
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Hongyuan Zhang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Baochao Yang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Haibing He
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Shuanhu Gao
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, Wuhu Hospital Affiliated to East China Normal University, East China Normal University, Shanghai 200062, P. R. China
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5
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Gong L, Chen C, Liu X, Wu X, Zhu L, Luo J, Kong L. Hainanolide inhibits the progression of colon cancer via inducing the cell cycle arrest, cell apoptosis and activation of the MAPK signaling pathway. Toxicol Appl Pharmacol 2022; 454:116249. [PMID: 36126765 DOI: 10.1016/j.taap.2022.116249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 09/03/2022] [Accepted: 09/13/2022] [Indexed: 12/24/2022]
Abstract
Hainanolide (HN) is a norditerpenoid metabolite extract from Cephalotaxus fortunei Hook. f. C. fortunei Hook. f. is renowned for the active alkaloids, such as harringtonine (HT) and homoharringtonin (HTT), which have been clinically used to treat chronic myeloid leukemia. Nowadays, diterpenoids, another important metabolite, attracted the attention of chemists. Among them, Hainanolide (HN), a cephalotane-type diterpenoid, has been proven to possess potent antitumor activities. However, the underlying therapeutic mechanisms of HN in anti-tumor have not been investigated yet. Our present study demonstrated that HN inhibited HCT-116 and HCT-15 cell proliferation in a dose- and time-dependent manner. Further studies demonstrated that HN can induce G2/M phase arrest and alter the Cdc25C/Cdc2/CyclinB1 proteins. Western blot indicated that HN promoted apoptosis by up-regulating Bax and down-regulated Bcl-2. And the caspase-3 and caspase-9 activities of HCT-116 and HCT-15 cells were increased. Transcriptome analysis is used to reveal the possible mechanism. Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses suggested the genes were mainly enriched in the MAPK signaling pathway. Certainly, HN activates MAPK signaling pathway. In vivo, HN prevented the AOM/DSS-induced tumorigenesis of colon cancer in C57BL/6 mice. Our study indicated that HN inhibits the progression of colon cancer cells by blocking the cell cycle, inducing apoptosis, and activating the MAPK pathway. This study provides a theoretical and experimental scientific basis for future investigations of the antitumor effects of HN against colon cancer.
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Affiliation(s)
- Lijie Gong
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Chen Chen
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Xiaoqin Liu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Xiutao Wu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Ling Zhu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Jianguang Luo
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.
| | - Lingyi Kong
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.
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6
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Wang Q, Shih JL, Tsui KY, Laconsay CJ, Tantillo DJ, May JA. Experimental and Computational Mechanistic Study of Carbonazidate-Initiated Cascade Reactions. J Org Chem 2022; 87:8983-9000. [PMID: 35758036 DOI: 10.1021/acs.joc.2c00696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A variety of Huisgen cyclization or nitrene/carbene alkyne cascade reactions with different types of termination were investigated. Accessible nitrene precursors were assessed, and carbonazidates were found to be the only effective initiators. Solvents, terminal alkynyl substituents, and catalysts can all impact the reaction outcome. Study of the mechanism both computationally (by density functional theory) and experimentally revealed relevant intermediates and plausible reaction pathways.
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Affiliation(s)
- Qinxuan Wang
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Jiun-Le Shih
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Ka Yi Tsui
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Croix J Laconsay
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Jeremy A May
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
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7
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Synthesis of Substituted Tropones and Advancement for the Construction of Structurally Significant Skeletons. ChemistrySelect 2022. [DOI: 10.1002/slct.202200440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Qing Z, Mao P, Wang T, Zhai H. Asymmetric Total Syntheses of Cephalotane-Type Diterpenoids Cephanolides A-D. J Am Chem Soc 2022; 144:10640-10646. [PMID: 35653731 DOI: 10.1021/jacs.2c03978] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cephanolides A-D are cephalotane-type diterpenoids featuring a novel 6/6/6/5 tetracyclic core embedded with a bridged δ-lactone. The asymmetric and divergent total syntheses of cephanolides A-D have been accomplished, proceeding in 11-14 steps from a known alcohol. The salient features of the present work include (i) a substrate-controlled diastereoselective intermolecular Diels-Alder reaction to form the 6-6 cis-fused rings, (ii) a palladium-catalyzed formal bimolecular [2 + 2 + 2] cycloaddition reaction via a partially intermolecular cascade reaction sequence involving multiple carbometalations to rapidly install the key tetracyclic skeleton, and (iii) lactonization and late-stage oxidative diversification to complete total syntheses of the four benzenoid cephanolides.
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Affiliation(s)
- Zhineng Qing
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Peng Mao
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Tie Wang
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Hongbin Zhai
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China.,Shenzhen Bay Laboratory, Shenzhen 518055, China.,Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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9
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Zhu TY, Wu XT, Chen C, Liu XQ, Zhu L, Luo JG, Kong LY. Photoaffinity Probe Reveals the Potential Target of Harringtonolide for Cancer Cell Migration Inhibition. ACS Med Chem Lett 2022; 13:449-456. [PMID: 35300090 PMCID: PMC8919390 DOI: 10.1021/acsmedchemlett.1c00625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/31/2022] [Indexed: 11/29/2022] Open
Abstract
Harringtonolide (HO, 1) is a bioactive diterpenoid tropone isolated from Cephalotaxus harringtonia with antiproliferation activity. Until now there have been no reports to elucidate its anticancer mechanism. Herein we report the synthesis of HO-derived probes (10, 11, and 12) to identify the possible target of HO. As a result, the application of a novel photoaffinity alkyne-tagged probe from HO (compound 12) showed direct engagement between HO and receptor for activated C kinase 1 (RACK1). Furthermore, HO could suppress the epithelial-mesenchymal transition (EMT) process and inhibit activation of the FAK/Src/STAT3 signaling pathway in A375 cells. This study provides a groundwork for HO as an effective antitumor agent that targets RACK1 to suppress cancer cell migration.
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Affiliation(s)
- Tian-Yu Zhu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xiu-Tao Wu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Chen Chen
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xiao-Qin Liu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Li Zhu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jian-Guang Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
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10
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Zhang F, Ren BT, Liu Y, Feng X. A nickel( ii)-catalyzed enantioselective all-carbon-based inverse-electron-demand Diels–Alder reaction of 2-pyrones with indenes. Org Chem Front 2022. [DOI: 10.1039/d2qo00493c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An asymmetric IEDDA reaction of 2-pyrones with indenes catalyzed by a chiral N,N′-dioxide/Ni(OTf)2 complex has been disclosed to construct highly functionalized hexahydrofluorenyl bridged-lactone scaffolds in high yields and ee.
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Affiliation(s)
- Fangqing Zhang
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, 518055, China
- Shenzhen Bay Laboratory, Shenzhen, 518055, China
| | - Bing-Tao Ren
- Shenzhen Bay Laboratory, Shenzhen, 518055, China
| | - Yangbin Liu
- Shenzhen Bay Laboratory, Shenzhen, 518055, China
| | - Xiaoming Feng
- Shenzhen Bay Laboratory, Shenzhen, 518055, China
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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11
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Lu Y, Xu M, Zhang Z, Zhang J, Cai Q. Catalytic Asymmetric Inverse‐Electron‐Demand Diels–Alder Reactions of 2‐Pyrones with Indenes: Total Syntheses of Cephanolides A and B. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202112223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yang Lu
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis Fudan University 220 Handan Rd. Shanghai 200433 China
| | - Meng‐Meng Xu
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis Fudan University 220 Handan Rd. Shanghai 200433 China
| | - Zhi‐Mao Zhang
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis Fudan University 220 Handan Rd. Shanghai 200433 China
| | - Junliang Zhang
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis Fudan University 220 Handan Rd. Shanghai 200433 China
| | - Quan Cai
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis Fudan University 220 Handan Rd. Shanghai 200433 China
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12
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Abstract
A concise and stereoselective total synthesis of (±)-cephanolide B was achieved in 15 steps. The key steps in the synthesis were as follows: (i) an intermolecular Diels-Alder reaction followed by lactonization to form the oxabicyclo[2.2.2]octane DE ring; (ii) a tandem reaction, featuring an intramolecular Pauson-Khand reaction, a 6π-electrocyclization, and an oxidative aromatization by O2, to construct the ABC-tricyclic rings (6-5-6); and (iii) a phthaloyl peroxide-mediated arene oxygenation to install the C-13 phenol group.
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Affiliation(s)
- Anding Li
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Ziru He
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Bingyan Liu
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Zhen Yang
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China.,Shenzhen Bay Laboratory, Shenzhen 518055, China.,Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Zichun Zhang
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
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13
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Jiang C, Xue J, Yuan Y, Li Y, Zhao C, Jing Q, Zhang X, Yang M, Han T, Bai J, Li Z, Li D, Hua H. Progress in structure, synthesis and biological activity of natural cephalotane diterpenoids. PHYTOCHEMISTRY 2021; 192:112939. [PMID: 34536803 DOI: 10.1016/j.phytochem.2021.112939] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/29/2021] [Accepted: 09/04/2021] [Indexed: 06/13/2023]
Abstract
The Cephalotaxus genus is well-known owing to the numerous complex, biologically relevant natural products that can be obtained from its constituent species. The successful identification of various Cephalotaxus alkaloids and natural, structurally diverse cephalotane diterpenoids that exhibit antitumor activities and excellent pharmacological properties has encouraged the discovery of previously undescribed compounds from this genus. The present review summarizes the different strategies for the total synthesis of cephalotane diterpenoids as well as their diverse chemical structures, antitumor activities, structure-activity relationships (SARs), and biosynthetic pathways.
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Affiliation(s)
- Chunyu Jiang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Jingjing Xue
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Yizhen Yuan
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Yanzhi Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Chunxue Zhao
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Qinxue Jing
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Xin Zhang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Mengyue Yang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Tong Han
- Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing, 163319, PR China
| | - Jiao Bai
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Zhanlin Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Dahong Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China.
| | - Huiming Hua
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China.
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14
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Liu X, Xu W, Fang F, Xu N, Lin Z, Luan X, Zhang J, Wang H. Construction of Structurally Rigid Azulen-6-ones via Migratory Rearrangement of Spirocycles and Their Photophysical Studies. Org Lett 2021; 23:8662-8667. [PMID: 34714098 DOI: 10.1021/acs.orglett.1c02841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of polysubstituted 1,1,2,3-tetraarylazulen-6-ones through the ring opening and scaffold rearrangement of spirocycles in the presence of ferric chloride under ambient conditions. Control experiments shown that this reaction may proceeded through a radical cation mechanism and futher theoretical calculation revealed that the electronic distribution of the radical cation intermediate dominated this oxidative rearrangement instead of dehydrogenation. It is noteworthy that some interesting photophysical properties, including aggregation-induced emission, halochromism, and two-photon fluorescence, were discovered for the azulen-6-one 2a, making them to work as promising functional materials in optical-related fields.
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Affiliation(s)
- Xiumei Liu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Wenhua Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Fang Fang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, Beijing 100811, China
| | - Nengni Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Zhishuang Lin
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Jinfeng Zhang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, Beijing 100811, China
| | - Hui Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
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15
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Lu Y, Xu MM, Zhang ZM, Zhang J, Cai Q. Catalytic Asymmetric Inverse-Electron-Demand Diels-Alder Reactions of 2-Pyrones with Indenes: Total Syntheses of Cephanolides A and B. Angew Chem Int Ed Engl 2021; 60:26610-26615. [PMID: 34668619 DOI: 10.1002/anie.202112223] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/11/2021] [Indexed: 12/15/2022]
Abstract
An inverse-electron-demand Diels-Alder (IEDDA) reaction could complement the conventional normal-electron-demand Diels-Alder reaction in the synthesis of six-membered carbocycles. However, catalytic asymmetric all-carbon-based IEDDA reactions are underdeveloped. Herein, we disclosed a copper-catalyzed asymmetric IEDDA reaction using electron-deficient 3-carboalkoxyl-2-pyrones and electronically unbiased indenes as reactants. This method enables the rapid and enantioselective construction of a wide range of hexahydrofluorenyl bridged-lactone scaffolds. Using this method, asymmetric total syntheses of cephanolides A and B were accomplished.
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Affiliation(s)
- Yang Lu
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University, 220 Handan Rd., Shanghai, 200433, China
| | - Meng-Meng Xu
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University, 220 Handan Rd., Shanghai, 200433, China
| | - Zhi-Mao Zhang
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University, 220 Handan Rd., Shanghai, 200433, China
| | - Junliang Zhang
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University, 220 Handan Rd., Shanghai, 200433, China
| | - Quan Cai
- Department of Chemistry and Research Center for Molecular Recognition and Synthesis, Fudan University, 220 Handan Rd., Shanghai, 200433, China
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16
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Ao Q, Zhang HJ, Zheng J, Chen X, Zhai H. Asymmetric Total Synthesis of (+)-Mannolide C. Angew Chem Int Ed Engl 2021; 60:21267-21271. [PMID: 34312950 DOI: 10.1002/anie.202107954] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Indexed: 12/14/2022]
Abstract
(+)-Mannolide C is a complex hexacyclic C20 cephalotane-type diterpenoid featuring a highly strained 7/6/6/5 tetracyclic core containing eight consecutive stereocenters and two bridging lactones. The first asymmetric total synthesis of (+)-mannolide C has been accomplished by lipase-mediated resolution, Ru-complex-catalyzed double ring-closing metathesis (RCM) reactions, NiII -catalyzed diastereoselective Michael addition, and MnIII -catalyzed allylic oxidation as the key transformations.
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Affiliation(s)
- Qiaoqiao Ao
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Hai-Jun Zhang
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Jinbin Zheng
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Xiaoming Chen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Hongbin Zhai
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China.,Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen, 518055, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China
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17
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Ao Q, Zhang H, Zheng J, Chen X, Zhai H. Asymmetric Total Synthesis of (+)‐Mannolide C. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107954] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Qiaoqiao Ao
- The State Key Laboratory of Chemical Oncogenomics Guangdong Provincial Key Laboratory of Nano-Micro Materials Research School of Chemical Biology and Biotechnology Shenzhen Graduate School of Peking University Shenzhen 518055 China
| | - Hai‐Jun Zhang
- The State Key Laboratory of Chemical Oncogenomics Guangdong Provincial Key Laboratory of Nano-Micro Materials Research School of Chemical Biology and Biotechnology Shenzhen Graduate School of Peking University Shenzhen 518055 China
| | - Jinbin Zheng
- The State Key Laboratory of Chemical Oncogenomics Guangdong Provincial Key Laboratory of Nano-Micro Materials Research School of Chemical Biology and Biotechnology Shenzhen Graduate School of Peking University Shenzhen 518055 China
| | - Xiaoming Chen
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Hongbin Zhai
- The State Key Laboratory of Chemical Oncogenomics Guangdong Provincial Key Laboratory of Nano-Micro Materials Research School of Chemical Biology and Biotechnology Shenzhen Graduate School of Peking University Shenzhen 518055 China
- Institute of Marine Biomedicine Shenzhen Polytechnic Shenzhen 518055 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 China
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18
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Ren Z, Sun Z, Li Y, Fan X, Dai M, Wang Y, Hu X. Total Synthesis of (+)-3-Deoxyfortalpinoid F, (+)-Fortalpinoid A, and (+)-Cephinoid H. Angew Chem Int Ed Engl 2021; 60:18572-18576. [PMID: 34164892 DOI: 10.1002/anie.202108034] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Indexed: 12/17/2022]
Abstract
3-Deoxyfortalpinoid F, fortalpinoid A, and cephinoid H are members of the Cephalotaxus diterpenoids class of natural products, which feature diverse chemical structures and valuable biological activities. We report herein the development of a diastereoselective Pauson-Khand reaction as an effective pathway to access the core tetracyclic skeleton, which is found widely in Cephalotaxus diterpenoids. Furthermore, we enabled the construction of the tropone moiety through a ring-closing metathesis/elimination protocol. Based on the developed strategy, asymmetric synthesis of the title compounds has been achieved for the first time.
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Affiliation(s)
- Zhiqiang Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Zhongliu Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Yifei Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Xin Fan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Mingda Dai
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Yunxia Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Xiangdong Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
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19
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Ren Z, Sun Z, Li Y, Fan X, Dai M, Wang Y, Hu X. Total Synthesis of (+)‐3‐Deoxyfortalpinoid F, (+)‐Fortalpinoid A, and (+)‐Cephinoid H. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zhiqiang Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Zhongliu Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Yifei Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Xin Fan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Mingda Dai
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Yunxia Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Xiangdong Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
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20
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Ethnopharmacology, chemodiversity, and bioactivity of Cephalotaxus medicinal plants. Chin J Nat Med 2021; 19:321-338. [PMID: 33941338 DOI: 10.1016/s1875-5364(21)60032-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Indexed: 12/16/2022]
Abstract
Cephalotaxus is the only genus of Cephalotaxaceae family, and its natural resources are declining due to habitat fragmentation, excessive exploitation and destruction. In many areas of China, folk herbal doctors traditionally use Cephalotaxus plants to treat innominate swollen poison, many of which are cancer. Not only among Han people, but also among minority ethnic groups, Cephalotaxus is used to treat various diseases, e.g., cough, internal bleeding and cancer in Miao medicine, bruises, rheumatism and pain in Yao medicine, and ascariasis, hookworm disease, scrofula in She medicine, etc. Medicinal values of some Cephalotaxus species and compounds are acknowledged officially. However, there is a lack of comprehensive review summarizing the ethnomedicinal knowledge of Cephalotaxus, relevant medicinal phytometabolites and their bioactivities. The research progresses in ethnopharmacology, chemodiversity, and bioactivities of Cephalotaxus medicinal plants are reviewed and commented here. Knowledge gaps are pinpointed and future research directions are suggested. Classic medicinal books, folk medicine books, herbal manuals and ethnomedicinal publications were reviewed for the genus Cephalotaxus (Sanjianshan in Chinese). The relevant data about ethnobotany, phytochemistry, and pharmacology were collected as comprehensively as possible from online databases including Scopus, NCBI PubMed, Bing Scholar, and China National Knowledge Infrastructure (CNKI). "Cephalotaxus", and the respective species name were used as keywords in database search. The obtained articles of the past six decades were collated and analyzed. Four Cephalotaxus species are listed in the official medicinal book in China. They are used as ethnomedicines by many ethnic groups such as Miao, Yao, Dong, She and Han. Inspirations are obtained from traditional applications, and Cephalotaxus phytometabolites are developed into anticancer reagents. Cephalotaxine-type alkaloids, homoerythrina-type alkaloids and homoharringtonine (HHT) are abundant in Cephalotaxus, e.g., C. lanceolata, C. fortunei var. alpina, C. griffithii, and C. hainanensis, etc. New methods of alkaloid analysis and purification are continuously developed and applied. Diterpenoids, sesquiterpenoids, flavonoids, lignans, phenolics, and other components are also identified and isolated in various Cephalotaxus species. Alkaloids such as HHT, terpenoids and other compounds have anticancer activities against multiple types of human cancer. Cephalotaxus extracts and compounds showed anti-inflammatory and antioxidant activities, immunomodulatory activity, antimicrobial activity and nematotoxicity, antihyperglycemic effect, and bone effect, etc. Drug metabolism and pharmacokinetic studies of Cephalotaxus are increasing. We should continue to collect and sort out folk medicinal knowledge of Cephalotaxus and associated organisms, so as to obtain new enlightenment to translate traditional tips into great therapeutic drugs. Transcriptomics, genomics, metabolomics and proteomics studies can contribute massive information for bioactivity and phytochemistry of Cephalotaxus medicinal plants. We should continue to strengthen the application of state-of-the-art technologies in more Cephalotaxus species and for more useful compounds and pharmacological activities.
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Wu X, Gong L, Chen C, Tao Y, Zhou W, Kong L, Luo J. Semi-Synthesis of Harringtonolide Derivatives and Their Antiproliferative Activity. Molecules 2021; 26:1380. [PMID: 33806554 PMCID: PMC7961763 DOI: 10.3390/molecules26051380] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 02/27/2021] [Accepted: 02/28/2021] [Indexed: 11/17/2022] Open
Abstract
Harringtonolide (HO), a natural product isolated from Cephalotaxus harringtonia, exhibits potent antiproliferative activity. However, little information has been reported on the systematic structure-activity relationship (SAR) of HO derivatives. Modifications on tropone, lactone, and allyl positions of HO (1) were carried out to provide 17 derivatives (2-13, 11a-11f). The in vitro antiproliferative activity against four cancer cell lines (HCT-116, A375, A549, and Huh-7) and one normal cell line (L-02) was tested. Amongst these novel derivatives, compound 6 exhibited comparable cell growth inhibitory activity to HO and displayed better selectivity index (SI = 56.5) between Huh-7 and L-02 cells. The SAR results revealed that the tropone and lactone moieties are essential for the cytotoxic activities, which provided useful suggestions for further structural optimization of HO.
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Affiliation(s)
| | | | | | | | | | - Lingyi Kong
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China; (X.W.); (L.G.); (C.C.); (Y.T.); (W.Z.)
| | - Jianguang Luo
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China; (X.W.); (L.G.); (C.C.); (Y.T.); (W.Z.)
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22
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Haider M, Sennari G, Eggert A, Sarpong R. Total Synthesis of the Cephalotaxus Norditerpenoids (±)-Cephanolides A-D. J Am Chem Soc 2021; 143:2710-2715. [PMID: 33577317 DOI: 10.1021/jacs.1c00293] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Concise syntheses of the Cephalotaxus norditerpenoids cephanolides A-D (8-14 steps from commercial material) using a common late-stage synthetic intermediate are described. The success of our approach rested on an early decision to apply chemical network analysis to identify the strategic bonds that needed to be forged, as well as the efficient construction of the carbon framework through iterative Csp2-Csp3 cross-coupling, followed by an intramolecular inverse-demand Diels-Alder cycloaddition. Strategic late-stage oxidations facilitated access to all congeners of the benzenoid cephanolides isolated to date.
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Affiliation(s)
- Maximilian Haider
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Goh Sennari
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Alina Eggert
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
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Shao J, Li Z, Wang Y, Xiong Y, Hu X. Synthesis and Bioactivity of Tropone Derivatives as Potential Compounds against Human Gastric Cancer Cells Growth. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Abstract
The asymmetric synthesis of cephanolide B, a complex C18 Cephalotaxus dinorditerpenoid, is presented for the first time.
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Affiliation(s)
- Hongyuan Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Haibing He
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- China
| | - Shuanhu Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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25
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Du Y, Huang B, Zeng J, Cai M. Recyclable heterogeneous gold(I)-catalyzed oxidative ring expansion of alkynyl quinols: a practical access to tropone and its analogues. Dalton Trans 2021; 50:6488-6499. [PMID: 33903864 DOI: 10.1039/d1dt00988e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The heterogeneous gold(i)-catalyzed oxidative ring expansion of alkynyl quinols has been achieved by using a benzyldiphenylphosphine-modified MCM-41-immobilized gold(i) complex [MCM-41-BnPh2P-AuNTf2] as the catalyst and 8-methylquinoline N-oxide as the oxidant under mild reaction conditions, yielding a variety of functionalized tropone derivatives in good to excellent yields. Extension of this methodology allows for facile construction of other seven- or six-membered ring systems including dibenzotropones, dibenzooxepines, phenanthrenes, and quinolin-2(1H)-ones. This new heterogeneous gold(i) complex can be readily recovered through a simple filtration process and recycled at least eight times without any apparent decrease in catalytic efficiency.
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Affiliation(s)
- Yingying Du
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Bin Huang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Jiajun Zeng
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
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Qu CH, Song GT, Huang JH, Huang R, Chen Y, Liu T, Tang DY, Xu ZG, Chen ZZ. Tandem isonitrile insertion/azacyclopropylidene-annulated cyclohexenone–tropone rearrangement of p-QMs and TosMIC: de novo synthesis of pyrrolotropones with anti-cancer activity. Org Chem Front 2021. [DOI: 10.1039/d1qo01256h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
TosMIC causes ring expansion of p-QMs: highly substituted pyrrolotropones are rapidly assembled in a domino process mediated by DBU. The utility of the method was highlighted by follow-up transformation and biological activity identification.
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Affiliation(s)
- Chuan-Hua Qu
- College of Pharmacy, National & Local Joint Engineering Research center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Gui-Ting Song
- College of Pharmacy, National & Local Joint Engineering Research center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Jiu-Hong Huang
- College of Pharmacy, National & Local Joint Engineering Research center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Run Huang
- College of Pharmacy, National & Local Joint Engineering Research center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Yuan Chen
- College of Pharmacy, National & Local Joint Engineering Research center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Tong Liu
- College of Pharmacy, National & Local Joint Engineering Research center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Dian-Yong Tang
- College of Pharmacy, National & Local Joint Engineering Research center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Zhi-Gang Xu
- College of Pharmacy, National & Local Joint Engineering Research center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Zhong-Zhu Chen
- College of Pharmacy, National & Local Joint Engineering Research center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing 402160, China
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Li Y, Wang Y, Shao Z, Zhao C, Jing Q, Li D, Lin B, Jing Y, Li Z, Hua H. Diterpenoids from Cephalotaxus fortunei var. alpina and their cytotoxic activity. Bioorg Chem 2020; 103:104226. [PMID: 32891003 DOI: 10.1016/j.bioorg.2020.104226] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 07/21/2020] [Accepted: 08/02/2020] [Indexed: 02/06/2023]
Abstract
Cephafortunoids A-D (1-4), four new compounds, together with ten known ones (5-14), were isolated from the branches and leaves of Cephalotaxus fortunei var. alpina. 1 and 2 represent the first examples of Cephalotaxus troponoid diterpenoids featured an intact C20 skeleton with CH3-17 migrating to C-15 and C-13 respectively. 3 and 4 are novel cephalotane-type diterpenoids with an epoxy ring between C-12 and C-13. The structures of isolated compounds were established by extensive spectroscopic methods, electronic circular dichroism (ECD) calculations, and comparison with reported data. In in vitro bioassays, all isolated compounds were evaluated for their cytotoxic activities against human promyelocytic leukemia cells (HL-60), human acute monocytic leukemia cells (THP-1), human breast cancer cells (MDA-MB-231), and human prostate cancer cells (PC-3). 5-9 exhibited prominent cytotoxicity against HL-60 and THP-1 with GI50 values of 0.27-5.48 and 0.48-7.54 μM, respectively. 5-8 showed evident cytotoxicity against MDA-MB-231 and PC-3 with IC50 values of 1.96-10.66 and 2.72-13.99 μM, severally. 6 with an IC50 value of 2.72 ± 0.35 μM displayed stronger cytotoxicity against PC-3 than the positive control etoposide. The structure-activity relationship of these compounds and plausible biogenetic pathways for 1-4 were discussed.
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Affiliation(s)
- Yanzhi Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China; College of Pharmacy, Jining Medical University, Rizhao 276826, People's Republic of China
| | - Yuetong Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Zhaoxiang Shao
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Chunxue Zhao
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Qinxue Jing
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Dahong Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Bin Lin
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Yongkui Jing
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Zhanlin Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
| | - Huiming Hua
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
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Wang Q, May JA. Synthesis of Bridged Azacycles and Propellanes via Nitrene/Alkyne Cascades. Org Lett 2020; 22:3039-3044. [PMID: 32243170 DOI: 10.1021/acs.orglett.0c00798] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A nitrene/alkyne cascade reaction terminating in C-H bond insertion to form functionalized bridged azacycles from carbonazidates is presented. Due to an initial Huisgen cyclization, all carbonazidates reacted with the alkyne in an exo mode in contrast to the use of sulfamate esters, which react predominately in an endo mode. Substrates with different ring sizes as well as different aryl and heteroaryl groups were also explored. Variation of the nitrene tether showed that 7-membered rings were the maximum ring size to be formed by nitrene attack on the alkyne. Examples incorporating stereocenters on the carbonazidate's tether induced diasteroselectivity in the formation of the bridged ring and two new stereocenters. Additionally, propellanes containing aminals, hemiaminals, and thioaminals formed from the bridged azacycles in the same reaction via an acid-promoted rearrangement.
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Affiliation(s)
- Qinxuan Wang
- Department of Chemistry, University of Houston, 3585 Cullen Boulevard, Fleming Building Room 112, Houston, Texas 77204-5003, United States
| | - Jeremy A May
- Department of Chemistry, University of Houston, 3585 Cullen Boulevard, Fleming Building Room 112, Houston, Texas 77204-5003, United States
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29
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Saktura M, Grzelak P, Dybowska J, Albrecht Ł. Asymmetric Synthesis of [2.2.2]-Bicyclic Lactones via All-Carbon Inverse-Electron-Demand Diels-Alder Reaction. Org Lett 2020; 22:1813-1817. [PMID: 32065757 PMCID: PMC7497662 DOI: 10.1021/acs.orglett.0c00138] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Indexed: 01/30/2023]
Abstract
In this paper, a new cycloaddition between α,β-unsaturated aldehydes and coumalates realized under dienamine activation has been described. The reaction proceeds regioselectively with the distal double bond of the dienamine system acting as electron-rich dienophile. It leads to the formation of biologically relevant [2.2.2]-bicyclic lactones. Their functionalization potential has been confirmed in selected, diastereoselective transformations.
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Affiliation(s)
| | | | - Joanna Dybowska
- Institute of Organic Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
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30
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Zazharskyi VV, Davydenko PО, Kulishenko OМ, Borovik IV, Kabar AM, Brygadyrenko VV. Antibacterial and fungicidal effect of ethanol extracts from Juniperus sabina, Chamaecyparis lawsoniana, Pseudotsuga menziesii and Cephalotaxus harringtonia. REGULATORY MECHANISMS IN BIOSYSTEMS 2020. [DOI: 10.15421/022015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
We determined a high antibacterial effect of ethanol extracts of four species of gymnosperms (Juniperus sabina, Chamaecyparis lawsoniana, Pseudotsuga menziesii and Cephalotaxus harringtonia) against 23 strains of bacteria of families Enterobacteriaceae (Escherichia coli, Enterococcus faecalis, Salmonella typhimurium, S. adobraco, Proteus vulgaris, P. mirabilis, Serratia marcescens, Klebsiella pneumoniae), Staphylococcaceae (Staphylococcus aureus, S. epidermidis), Yersiniaceae (Yersinia enterocolitica), Bacillaceae (Bacillus subtilis, B. cereus), Listeriaceae (Listeria ivanovi, L. іnnocua, L. monocytogenes), Corynebacteriaceae (Corynebacterium xerosis), Campylobacteraceae (Campylobacter jejuni), Nocardiaceae (Rhodococcus equi), Pseudomonadaceae (Pseudomonas аeruginosa) and one strain of fungi of the Saccharomycetaceae family (Candida albicans). The experiment in vitro revealed zone of inhibition of growth of colonies, measuring over 8 mm, produced by ethanol extracts from J. sabina against seven species of bacteria (S. aureus, B. subtilis, B. cereus, L. іnnocua, C. xerosis, Rh. equi and P. аeruginosa), Ch. lawsoniana – against five species (E. coli, B. subtilis, L. іnnocua and Rh. equi), P. menziesii –two species (Rh. equi and P. mirabilis), C. harringtonia – ten species of microorganisms (E. coli, S. aureus, S. epidermidis, L. ivanovi, L. monocytogenes, C. xerosis, C. jejuni, P. vulgaris, S. marcescens and C. albicans). As a result of the research, the most promising plants for further in vivo study of antibacterial activity were C. harringtonia and J. sabina.
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32
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Ge ZP, Liu HC, Wang GC, Liu QF, Xu CH, Ding J, Fan YY, Yue JM. 17- nor-Cephalotane-Type Diterpenoids from Cephalotaxus fortunei. JOURNAL OF NATURAL PRODUCTS 2019; 82:1565-1575. [PMID: 31184894 DOI: 10.1021/acs.jnatprod.9b00059] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Seventeen new 17- nor-cephalotane-type diterpenoids, fortalpinoids A-Q (1-17), were isolated from the seeds of Cephalotaxus fortunei var. alpine. Compound 12 represents the first 17- nor-cephalotane-type diterpenoid featuring an 8-oxabicyclo[3.2.1]oct-2-ene moiety. The absolute configuration of fortunolide A (18) was determined for the first time, and the structure of cephinoid Q was revised to 14- epi-cephafortoid A (24) by X-ray crystallographic data analysis. Some of the compounds showed significant cytotoxicity against A549 and HL-60 cells, and the structure-activity relationship of this compound class is discussed.
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Affiliation(s)
- Zhan-Peng Ge
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
- University of Chinese Academy of Sciences , No. 19A Yuquan Road , Beijing 100049 , People's Republic of China
| | - Hong-Chun Liu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Guo-Cai Wang
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Qun-Fang Liu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Cheng-Hui Xu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Jian Ding
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Yao-Yue Fan
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road , Shanghai 201203 , People's Republic of China
- University of Chinese Academy of Sciences , No. 19A Yuquan Road , Beijing 100049 , People's Republic of China
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33
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Ni L, Zhong XH, Chen XJ, Zhang BJ, Bao MF, Cai XH. Bioactive norditerpenoids from Cephalotaxus fortunei var. alpina and C. lanceolata. PHYTOCHEMISTRY 2018; 151:50-60. [PMID: 29665476 DOI: 10.1016/j.phytochem.2018.04.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 04/08/2018] [Accepted: 04/09/2018] [Indexed: 06/08/2023]
Abstract
Twenty-eight naturally occurring Cephalotaxus tropone analogues, including 19 previously undescribed ones, were identified from Cephalotaxus fortunei Hook. var. alpina H. L. Li and C. lanceolata K. M. Feng. The presence of the C20 cephinoids A-E revealed that these tropones were assigned to the norditerpenoids and were perhaps derived from labdane-type diterpenoids. These norditerpenoids showed excellent cytotoxicity against human cancer cells (IC50, 20-0.1 μM) in vitro. The SAR (structure-activity relationship) analysis disclosed that the tropone moiety and the lactone ring were crucial structural features for the observed activities. Further SAR analyses led to a new candidate, cephinoid H, which demonstrated an inhibition of 49.0% by administration to zebrafish at a dose of 60.0 ng/mL, compared to cisplatin (DDP, 22.4%) at 15.0 μg/mL. These compounds might affect the NF-κB signaling pathway rather than binding to microtubules. Additionally, the isolated norditerpenoids showed almost equal anti-inflammatory activities compared to the positive control, MG132.
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Affiliation(s)
- Ling Ni
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China
| | - Xiu-Hong Zhong
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Xiao-Jiao Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Bing-Jie Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China
| | - Mei-Fen Bao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China
| | - Xiang-Hai Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming 650201, People's Republic of China.
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34
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Xu L, Wang C, Gao Z, Zhao YM. Total Synthesis of (±)-Cephanolides B and C via a Palladium-Catalyzed Cascade Cyclization and Late-Stage sp3 C–H Bond Oxidation. J Am Chem Soc 2018; 140:5653-5658. [PMID: 29627977 DOI: 10.1021/jacs.8b03015] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lun Xu
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang’an Avenue, Xi’an 710119, China
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang’an Avenue, Xi’an 710119, China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang’an Avenue, Xi’an 710119, China
| | - Yu-Ming Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University, 620 West Chang’an Avenue, Xi’an 710119, China
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35
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Liu X, Hu YJ, Fan JH, Zhao J, Li S, Li CC. Recent synthetic studies towards natural products via [5 + 2] cycloaddition reactions. Org Chem Front 2018. [DOI: 10.1039/c7qo01123g] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this review, we provide a summary of recent progress regarding synthetic studies towards natural products via [5 + 2] cycloaddition reactions.
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Affiliation(s)
- Xin Liu
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
- Department of Chemistry
| | - Ya-Jian Hu
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
- Department of Chemistry
| | - Jian-Hong Fan
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
- Department of Chemistry
| | - Jing Zhao
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Shaoping Li
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Chuang-Chuang Li
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518055
- China
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36
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Vallet M, Vanbellingen QP, Fu T, Le Caer JP, Della-Negra S, Touboul D, Duncan KR, Nay B, Brunelle A, Prado S. An Integrative Approach to Decipher the Chemical Antagonism between the Competing Endophytes Paraconiothyrium variabile and Bacillus subtilis. JOURNAL OF NATURAL PRODUCTS 2017; 80:2863-2873. [PMID: 29139291 DOI: 10.1021/acs.jnatprod.6b01185] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An integrative approach combining traditional natural products chemistry, molecular networking, and mass spectrometry imaging has been undertaken to decipher the molecular dialogue between the fungus Paraconiothyrium variabile and the bacterium Bacillus subtilis, which were isolated as endophytes from the conifer Cephalotaxus harringtonia and are characterized by a strong and mutual antibiosis. From this study, we highlight that bacterial surfactins and a fungal tetronic acid are involved in such competition and that the fungus is able to hydrolyze surfactins to fight against the bacterial partner.
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Affiliation(s)
- Marine Vallet
- Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245), Sorbonne Université, Muséum National d'Histoire Naturelle, CNRS , CP 54, 57 rue Cuvier, 75005 Paris, France
| | - Quentin P Vanbellingen
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Tingting Fu
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Jean-Pierre Le Caer
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Serge Della-Negra
- Institut de Physique Nucléaire, UMR8608, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay , 91406, Orsay, France
| | - David Touboul
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Katherine R Duncan
- Strathclyde Institute of Pharmacy and Biomedical Sciences, HW608, University of Strathclyde , 161 Cathedral Street, Glasgow G4 ORE, U.K
| | - Bastien Nay
- Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245), Sorbonne Université, Muséum National d'Histoire Naturelle, CNRS , CP 54, 57 rue Cuvier, 75005 Paris, France
| | - Alain Brunelle
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Soizic Prado
- Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245), Sorbonne Université, Muséum National d'Histoire Naturelle, CNRS , CP 54, 57 rue Cuvier, 75005 Paris, France
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37
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Van Loc T, Lieu NT, Thao TTP, Luu NT, Anh HN, Ha LTT, Van Chien T, Ninh PT, Phong DT, Van Sung T. The Alkaloidal Constituents of Cephalotaxus mannii Collected in Lam Dong Province, Vietnam. Chem Nat Compd 2017. [DOI: 10.1007/s10600-017-2214-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Shi LM, Dong WW, Tao HY, Dong XQ, Wang CJ. Catalytic Asymmetric Desymmetrization of Cyclopentendiones via Diels–Alder Reaction of 3-Hydroxy-2-pyrones: Construction of Multifunctional Bridged Tricyclic Lactones. Org Lett 2017; 19:4532-4535. [DOI: 10.1021/acs.orglett.7b02107] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Li-Min Shi
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 230012, China
| | - Wu-Wei Dong
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 230012, China
| | - Hai-Yan Tao
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- State
Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Xiu-Qin Dong
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Chun-Jiang Wang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 230012, China
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39
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Amand S, Vallet M, Guedon L, Genta-Jouve G, Wien F, Mann S, Dupont J, Prado S, Nay B. A Reactive Eremophilane and Its Antibacterial 2(1H)-Naphthalenone Rearrangement Product, Witnesses of a Microbial Chemical Warfare. Org Lett 2017; 19:4038-4041. [DOI: 10.1021/acs.orglett.7b01788] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Séverine Amand
- Muséum National d’Histoire Naturelle, CNRS (UMR 7245 MCAM), Sorbonne Universités, 57 rue Cuvier (CP 54), 75005 Paris, France
| | - Marine Vallet
- Muséum National d’Histoire Naturelle, CNRS (UMR 7245 MCAM), Sorbonne Universités, 57 rue Cuvier (CP 54), 75005 Paris, France
| | - Laura Guedon
- Muséum National d’Histoire Naturelle, CNRS (UMR 7245 MCAM), Sorbonne Universités, 57 rue Cuvier (CP 54), 75005 Paris, France
| | - Grégory Genta-Jouve
- Université Paris Descartes, CNRS (UMR 8638 C-TAC),
Faculté de Pharmacie de Paris, Sorbonne Paris Cité, 4 Avenue de l’Observatoire, 75006 Paris, France
| | - Frank Wien
- Synchrotron
SOLEIL,
DISCO line, Gif-sur-Yvette, France
| | - Stéphane Mann
- Muséum National d’Histoire Naturelle, CNRS (UMR 7245 MCAM), Sorbonne Universités, 57 rue Cuvier (CP 54), 75005 Paris, France
| | - Joëlle Dupont
- Muséum National d’Histoire Naturelle, CNRS
(UMR 7205 ISYEB), Sorbonne Universités, 57 rue Cuvier (CP 39), 75005 Paris, France
| | - Soizic Prado
- Muséum National d’Histoire Naturelle, CNRS (UMR 7245 MCAM), Sorbonne Universités, 57 rue Cuvier (CP 54), 75005 Paris, France
| | - Bastien Nay
- Muséum National d’Histoire Naturelle, CNRS (UMR 7245 MCAM), Sorbonne Universités, 57 rue Cuvier (CP 54), 75005 Paris, France
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40
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Abstract
A new abietane diterpenoid, 12-O-methyl-20-deoxocarnosol-3-one (1), and eight known abietane diterpenoids including 13-abietadien-12-one (2), 5,6-dehydrosugiol (3), sugiol (4), torreyayunnin (5), taxusabietane A (6), hinokiol (7), 3-acetoxyabieta-8,11,13-trien-12-ol (8), and martiusane (9) were obtained from leaves and twigs of Cephalotaxus lanceolata. The structures of isolated compounds (1-9) were determined based on analysis of their spectroscopic data and comparison with those reported in the literature. Compounds 3, 8 and 9 were first isolated from the plants of Cephalotaxus genus.
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Affiliation(s)
- Xiao-Jiao Chen
- a College of Horticulture and Landscape , Yunnan Agricultural University , Kunming , China.,b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , China
| | - Ling Ni
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , China
| | - Mei-Fen Bao
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , China
| | - Li Wang
- a College of Horticulture and Landscape , Yunnan Agricultural University , Kunming , China
| | - Xiang-Hai Cai
- b State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , China
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41
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Zhao JX, Fan YY, Xu JB, Gan LS, Xu CH, Ding J, Yue JM. Diterpenoids and Lignans from Cephalotaxus fortunei. JOURNAL OF NATURAL PRODUCTS 2017; 80:356-362. [PMID: 28139925 DOI: 10.1021/acs.jnatprod.6b00802] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Five new diterpenoids including two Cephalotaxus troponoids (1 and 2), two 17-nor-cephalotane-type diterpenoids (3 and 4), and an abietane-type diterpenoid (5), two new lignans (6 and 7), and a new trisnorneoligan (8) along with eight known compounds were identified from the twigs and leaves of Cephalotaxus fortunei. The structure of 11-hydroxyhainanolidol was revised as 10-hydroxyhainanolidol (9) by X-ray crystallographic data. Compounds 3 and 4 are the first examples of 17-nor-cephalotane-type diterpenoids that are likely the biosynthesis precursors of the co-occurring troponoids (e.g., 1, 2, and 9). Compound 1 exhibited cytotoxic activities against HL-60 and A-549 cells with IC50 values of 0.77 ± 0.05 and 1.129 ± 0.057 μM, respectively.
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Affiliation(s)
- Jin-Xin Zhao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Yao-Yue Fan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Jin-Biao Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Li-She Gan
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, People's Republic of China
| | - Cheng-Hui Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Jian Ding
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, People's Republic of China
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42
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Xu JB, Fan YY, Gan LS, Zhou YB, Li J, Yue JM. Cephalotanins A-D, Four Norditerpenoids Represent Three Highly Rigid Carbon Skeletons from Cephalotaxus sinensis. Chemistry 2016; 22:14648-54. [PMID: 27539922 DOI: 10.1002/chem.201603373] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Indexed: 11/07/2022]
Abstract
Four polycyclic norditerpenoids, cephalotanins A-D (1-4) representing three unprecedented carbon skeletons with highly rigid ring systems, were isolated from Cephalotaxus sinensis and structurally characterized by a combination of various methods. Compounds 1 and 2 are new skeletal norditerpenoid trilactones, while 3 and 4 are two norditerpenoids featuring different new carbon skeletons. Biosynthetic pathways for 1-4 were proposed by involving diverse and very fascinating chemical events with the coexisting cephalotane troponoids as the precursors. Compound 1 exhibited good NF-κB inhibition with an IC50 value of 4.12±0.61 μΜ.
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Affiliation(s)
- Jin-Biao Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, P. R. China
| | - Yao-Yue Fan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, P. R. China
| | - Li-She Gan
- Institute of Modern Chinese Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Yu-Bo Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, P. R. China
| | - Jia Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, P. R. China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, P. R. China.
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43
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Zhang HJ, Hu L, Ma Z, Li R, Zhang Z, Tao C, Cheng B, Li Y, Wang H, Zhai H. Total Synthesis of the Diterpenoid (+)-Harringtonolide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605879] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hai-Jun Zhang
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Lin Hu
- CAS-Key Laboratory of Synthetic Chemistry of Natural Substances; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; Shanghai 200032 China
| | - Zhiqiang Ma
- CAS-Key Laboratory of Synthetic Chemistry of Natural Substances; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; Shanghai 200032 China
| | - Ruining Li
- CAS-Key Laboratory of Synthetic Chemistry of Natural Substances; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; Shanghai 200032 China
| | - Zhen Zhang
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Cheng Tao
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Bin Cheng
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Yun Li
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
| | - Huifei Wang
- Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
| | - Hongbin Zhai
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering; Lanzhou University; 222 Tianshui South Road Lanzhou 730000 China
- Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, Key Laboratory of Chemical Genomics; Shenzhen Graduate School of Peking University; Shenzhen 518055 China
- CAS-Key Laboratory of Synthetic Chemistry of Natural Substances; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; Shanghai 200032 China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin; Tianjin 300071 China
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44
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Zhang HJ, Hu L, Ma Z, Li R, Zhang Z, Tao C, Cheng B, Li Y, Wang H, Zhai H. Total Synthesis of the Diterpenoid (+)-Harringtonolide. Angew Chem Int Ed Engl 2016; 55:11638-41. [PMID: 27529411 DOI: 10.1002/anie.201605879] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Indexed: 11/08/2022]
Abstract
Described herein is the first asymmetric total synthesis of (+)-harringtonolide, a natural diterpenoid with an unusual tropone imbedded in a cagelike framework. The key transformations include an intramolecular Diels-Alder reaction and a rhodium-complex-catalyzed intramolecular [3+2] cycloaddition to install the tetracyclic core as well as a highly efficient tropone formation.
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Affiliation(s)
- Hai-Jun Zhang
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Lin Hu
- CAS-Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Zhiqiang Ma
- CAS-Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Ruining Li
- CAS-Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Zhen Zhang
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Cheng Tao
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Bin Cheng
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Yun Li
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Huifei Wang
- Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, Key Laboratory of Chemical Genomics, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Hongbin Zhai
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China. .,Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, Key Laboratory of Chemical Genomics, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China. .,CAS-Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China. .,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, Tianjin, 300071, China.
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45
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Yongsheng Zheng, Ghazvini Zadeh EH, Yuan Y. One-Pot, Enantioselective Synthesis of 2,3-Dihydroazulen-6(1H)-one: A Concise Access to the Core Structure ofCephalotaxusNorditerpenes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600321] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Ni G, Zhang H, Fan YY, Liu HC, Ding J, Yue JM. Mannolides A-C with an Intact Diterpenoid Skeleton Providing Insights on the Biosynthesis of Antitumor Cephalotaxus Troponoids. Org Lett 2016; 18:1880-3. [PMID: 27042943 DOI: 10.1021/acs.orglett.6b00653] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three new diterpenoids, mannolides A-C (1-3), and two new Cephalotaxus troponoids, 4 and 5, were isolated from Cephalotaxus mannii and structurally characterized by spectroscopic data and X-ray crystallography. The discovery of compounds 1-3 featuring a new intact carbon skeleton, proposed as cephalotane, sheds new light on the biogenesis of Cephalotaxus troponoids, a rare class of antitumor C19 norditerpenoids. Antitumor tests showed that the tropone motif is essential for the activity.
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Affiliation(s)
- Gang Ni
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Hua Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Yao-Yue Fan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Hong-Chun Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Jian Ding
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
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47
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Le PQ, May JA. Hydrazone-initiated carbene/alkyne cascades to form polycyclic products: ring-fused cyclopropenes as mechanistic intermediates. J Am Chem Soc 2015; 137:12219-22. [PMID: 26394217 DOI: 10.1021/jacs.5b08157] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A hydrazone-based carbene/alkyne cascade produced a variety of bridged and fused polycyclic products. NaOSiMe3 is a superior base for conversion of hydrazones to diazoalkanes. A key mechanistic intermediate, a ring-fused cyclopropene, has been isolated and characterized.
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Affiliation(s)
- Phong Q Le
- Department of Chemistry, University of Houston , 3585 Cullen Blvd, Room 112, Houston, Texas 77204-5003, United States
| | - Jeremy A May
- Department of Chemistry, University of Houston , 3585 Cullen Blvd, Room 112, Houston, Texas 77204-5003, United States
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48
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Liu N, Song W, Schienebeck CM, Zhang M, Tang W. Synthesis of Naturally Occurring Tropones and Tropolones. Tetrahedron 2014; 70:9281-9305. [PMID: 25400298 PMCID: PMC4228802 DOI: 10.1016/j.tet.2014.07.065] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Tropones and tropolones are an important class of seven-membered non-benzenoid aromatic compounds. They can be prepared directly by oxidation of seven-membered rings. They can also be derived from cyclization or cycloaddition of appropriate precursors followed by elimination or rearrangement. This review discusses the types of naturally occurring tropones and tropolones and outlines important methods developed for the synthesis of tropone and tropolone natural products.
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Affiliation(s)
- Na Liu
- School of Pharmacy, University of Wisconsin, 777 Highland Avenue, Madison, WI 53705
| | - Wangze Song
- School of Pharmacy, University of Wisconsin, 777 Highland Avenue, Madison, WI 53705
| | - Casi M. Schienebeck
- School of Pharmacy, University of Wisconsin, 777 Highland Avenue, Madison, WI 53705
| | - Min Zhang
- Innovative Drug Discovery Centre, Chongqing University, 55 Daxuecheng South Rd, Shapingba, Chongqing, 401331, P. R. China
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin, 777 Highland Avenue, Madison, WI 53705
- Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, WI 53706
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49
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Tian Y, Amand S, Buisson D, Kunz C, Hachette F, Dupont J, Nay B, Prado S. The fungal leaf endophyte Paraconiothyrium variabile specifically metabolizes the host-plant metabolome for its own benefit. PHYTOCHEMISTRY 2014; 108:95-101. [PMID: 25446235 DOI: 10.1016/j.phytochem.2014.09.021] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 09/15/2014] [Accepted: 09/24/2014] [Indexed: 05/21/2023]
Abstract
Fungal endophytes live inside plant tissues and some have been found to provide benefits to their host. Nevertheless, their ecological impact is not adequately understood. Considering the fact that endophytes are continuously interacting with their hosts, it is conceivable that both partners have substantial influence on each other's metabolic processes. In this context, we have investigated the action of the endophytic fungus Paraconiothyrium variabile, isolated from the leaves of Cephalotaxus harringtonia, on the secondary metabolome of the host-plant. The alteration of the leaf compounds by the fungus was monitored through metabolomic approaches followed by structural characterization of the altered products. Out of more than a thousand molecules present in the crude extract of the plant leaf, we have observed a specific biotransformation of glycosylated flavonoids by the endophyte. In all cases it led to the production of the corresponding aglycone via deglycosylation. The deglycosylated flavonoids turned out to display significant beneficial effects on the hyphal growth of germinated spores. Our finding, along with the known allelopathic role of flavonoids, illustrates the chemical cooperation underlying the mutualistic relationship between the plant and the endophyte.
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Affiliation(s)
- Yuan Tian
- Molécules de Communication et Adaptation des Microorganismes (MCAM), UMR 7245 CNRS/Muséum National d'Histoire Naturelle, Paris, France
| | - Séverine Amand
- Molécules de Communication et Adaptation des Microorganismes (MCAM), UMR 7245 CNRS/Muséum National d'Histoire Naturelle, Paris, France
| | - Didier Buisson
- Molécules de Communication et Adaptation des Microorganismes (MCAM), UMR 7245 CNRS/Muséum National d'Histoire Naturelle, Paris, France
| | - Caroline Kunz
- Molécules de Communication et Adaptation des Microorganismes (MCAM), UMR 7245 CNRS/Muséum National d'Histoire Naturelle, Paris, France; Sorbonne Universités, UPMC University Paris 06, UFR 927, Paris, France
| | - François Hachette
- Jardins Botaniques, Arboretum de Chèvreloup, USM 0802, Muséum National d'Histoire Naturelle, Rocquencourt, France
| | - Joëlle Dupont
- Institut de Systématique, Evolution, Biodiversité (ISEB), UMR 7205 CNRS/Muséum National d'Histoire Naturelle, Paris, France
| | - Bastien Nay
- Molécules de Communication et Adaptation des Microorganismes (MCAM), UMR 7245 CNRS/Muséum National d'Histoire Naturelle, Paris, France
| | - Soizic Prado
- Molécules de Communication et Adaptation des Microorganismes (MCAM), UMR 7245 CNRS/Muséum National d'Histoire Naturelle, Paris, France.
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50
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Zhang M, Liu N, Tang W. Stereoselective total synthesis of hainanolidol and harringtonolide via oxidopyrylium-based [5 + 2] cycloaddition. J Am Chem Soc 2013; 135:12434-8. [PMID: 23930656 PMCID: PMC3798225 DOI: 10.1021/ja406255j] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The tetracyclic carbon skeleton of hainanolidol and harringtonolide was efficiently constructed by an intramolecular oxidopyrylium-based [5 + 2] cycloaddition. An anionic ring-opening strategy was developed for the cleavage of the ether bridge in 8-oxabicyclo[3.2.1]octenes derived from the [5 + 2] cycloaddition. Conversion of cycloheptadiene to tropone was realized by a sequential [4 + 2] cycloaddition, Kornblum-DeLaMare rearrangement, and double elimination. The biomimetic synthesis of harringtonolide from hainanolidol was also confirmed.
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Affiliation(s)
- Min Zhang
- School of Pharmacy, University of Wisconsin, Madison, 53705, United States
| | - Na Liu
- School of Pharmacy, University of Wisconsin, Madison, 53705, United States
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin, Madison, 53705, United States
- Department of Chemistry, University of Wisconsin, Madison, 53706, United States
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