1
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Dembitsky VM. Naturally Occurring Norsteroids and Their Design and Pharmaceutical Application. Biomedicines 2024; 12:1021. [PMID: 38790983 PMCID: PMC11117879 DOI: 10.3390/biomedicines12051021] [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: 04/12/2024] [Revised: 04/29/2024] [Accepted: 05/01/2024] [Indexed: 05/26/2024] Open
Abstract
The main focus of this review is to introduce readers to the fascinating class of lipid molecules known as norsteroids, exploring their distribution across various biotopes and their biological activities. The review provides an in-depth analysis of various modified steroids, including A, B, C, and D-norsteroids, each characterized by distinct structural alterations. These modifications, which range from the removal of specific methyl groups to changes in the steroid core, result in unique molecular architectures that significantly impact their biological activity and therapeutic potential. The discussion on A, B, C, and D-norsteroids sheds light on their unique configurations and how these structural modifications influence their pharmacological properties. The review also presents examples from natural sources that produce a diverse array of steroids with distinct structures, including the aforementioned A, B, C, and D-nor variants. These compounds are sourced from marine organisms like sponges, soft corals, and starfish, as well as terrestrial entities such as plants, fungi, and bacteria. The exploration of these steroids encompasses their biosynthesis, ecological significance, and potential medical applications, highlighting a crucial area of interest in pharmacology and natural product chemistry. The review emphasizes the importance of researching these steroids for drug development, particularly in addressing diseases where conventional medications are inadequate or for conditions lacking sufficient therapeutic options. Examples of norsteroid synthesis are provided to illustrate the practical applications of this research.
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Affiliation(s)
- Valery M Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada
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2
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Guo C, Li L, Yan Q, Chen J, Liu ZQ, Li QX, Ni SF, Li Z. Radical Three-Component Nitro Spiro-Cyclization of Unsaturated Sulfonamides/Amides to Access NO 2-Featured 4-Azaspiro[4.5]decanes. Org Lett 2024; 26:3069-3074. [PMID: 38557118 DOI: 10.1021/acs.orglett.4c00651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Free radical three-component nitration/spirocyclization of unsaturated sulfonamides/amides with tert-butyl nitrite was developed for the construction of diverse NO2-revised 4-azaspiro[4.5]decanes. This tandem system featured metal-free participation, simple operation, good selectivity/yields, and a green/low-cost O source. Meanwhile, one nitro-containing complex molecule and a scaled-up operation were performed well to test the synthetic potential of the cascade reaction. Isotopic labeling, radical inhibition experiments, and DFT analysis were carried out to gain insight into the reaction process.
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Affiliation(s)
- Changyou Guo
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Lijun Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Qinqin Yan
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Jingyi Chen
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei 071002, P. R. China
| | - Zhong-Quan Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P. R. China
| | - Quan-Xin Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Shao-Fei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Zejiang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei 071002, P. R. China
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3
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Feng G, He J, Li Q, Bai M, Liu K, Liu X, Yi X, Liu Y, Luo L, Gao C. New Alkaloids and Steroids from Hydranth of Goniopora columna Corals and Their Inhibiting Lung Cancer Cell Activities. Chem Biodivers 2024; 21:e202301993. [PMID: 38342755 DOI: 10.1002/cbdv.202301993] [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: 12/11/2023] [Revised: 01/25/2024] [Accepted: 01/25/2024] [Indexed: 02/13/2024]
Abstract
A new alkaloids, aplysingoniopora A (1), and new configuration pregnane type steroid compound, 9,17-α-pregn-1,4,20-en-3-one (2), and two known pregnane type steroid compounds (3 and 4) were isolated from hydranth of Goniopora columna corals. The compounds structures and absolute configurations were determined by extensive spectroscopic analysis, MS data, single-crystal X-ray diffraction analysis and quantum chemical calculation. The anticancer effect of the compounds were explored in human non-small-cell lung cancer (NSCLC) A549 cell lines. As the results, the compound 3 and 4 induces toxicity and has proliferation inhibitory effects on A549 cells (IC50=58.99 μM and 58.77 μM, respectively) in vitro.
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Affiliation(s)
- Guangfu Feng
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
- Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
| | - Jieyi He
- The Marine Biomedical Research Institute, Guangdong Medical University, Wenming East-Road 2, 524023, Zhanjiang, Guangdong, China
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, Wenming East-Road 2, 524023, Zhanjiang, Guangdong, China
| | - Qiqi Li
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
- Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
| | - Meng Bai
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
- Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
| | - Kai Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
- Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
| | - Xinming Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
- Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
| | - Xiangxi Yi
- Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
| | - Yonghong Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
- Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
| | - Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Wenming East-Road 2, 524023, Zhanjiang, Guangdong, China
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, Wenming East-Road 2, 524023, Zhanjiang, Guangdong, China
| | - Chenghai Gao
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
- Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Wuhe Road 13, 530200, Nanning, China
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4
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Zhang Z, Zhang W, Hou ZW, Li P, Wang L. Electrophilic Halospirocyclization of N-Benzylacrylamides to Access 4-Halomethyl-2-azaspiro[4.5]decanes. J Org Chem 2023; 88:13610-13621. [PMID: 37694951 DOI: 10.1021/acs.joc.3c01315] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
An electrophilic spirocyclization of N-benzylacrylamides with N-halosuccinimides (NXS) as the halogenating reagents has been developed. This reaction is carried out at room temperature under simple conditions without relying on metal reagents, photochemistry, or electrochemistry, providing a fast and efficient route to synthesize a wide variety of 4-halomethyl-2-azaspiro[4.5]decanes with satisfactory yields. The approach is further highlighted through gram-scale synthesis and diverse transformations of the spiro products.
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Affiliation(s)
- Zhongyi Zhang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
- Department of Chemistry, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
| | - Wei Zhang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
| | - Zhong-Wei Hou
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
| | - Pinhua Li
- Department of Chemistry, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P. R. China
| | - Lei Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, Zhejiang, P. R. China
- Department of Chemistry, Huaibei Normal University, Huaibei 235000, Anhui, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P. R. China
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5
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Mutombo Mianda S, Moyo P, Maboane S, Birkholtz LM, Maharaj VJ. Phytoconstituents from Turraea obtusifolia and their antiplasmodial activity. Nat Prod Res 2023:1-13. [PMID: 37712398 DOI: 10.1080/14786419.2023.2255921] [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: 06/20/2023] [Revised: 08/02/2023] [Accepted: 09/02/2023] [Indexed: 09/16/2023]
Abstract
Three new steroids, turranin M, N and O (1-3), together with four known limonoids, nymania 1 (4), rubralin B (5), aphapolynin C (6) and Trichillia substance Tr B (7), were isolated from the leaves of Turraea obtusifolia. Their chemical structures were elucidated using NMR and MS. Rubralin B (5) displayed good activity against the asexual parasites from the drug sensitive Plasmodium falciparum NF54 strain with an IC50 value of 3.47 µg/mL (4.57 µM), nymania 1 (4) showed a weak activity (IC50 13.36 µg/mL (19.40 µM)) and the rest of compounds had IC50 > 20 µg/mL.
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Affiliation(s)
- Sephora Mutombo Mianda
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
| | - Phanankosi Moyo
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
- Department of Biochemistry, Genetics and Microbiology, Institute for Sustainable Malaria Control, University of Pretoria, Hatfield, Pretoria, South Africa
| | - Suzan Maboane
- Department of Biochemistry, Genetics and Microbiology, Institute for Sustainable Malaria Control, University of Pretoria, Hatfield, Pretoria, South Africa
| | - Lyn-Marié Birkholtz
- Department of Biochemistry, Genetics and Microbiology, Institute for Sustainable Malaria Control, University of Pretoria, Hatfield, Pretoria, South Africa
| | - Vinesh J Maharaj
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
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6
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Xia ZY, Sun MM, Jin Y, Yao LG, Su MZ, Liang LF, Wang H, Guo YW. Lobosteroids A-F: Six New Highly Oxidized Steroids from the Chinese Soft Coral Lobophytum sp. Mar Drugs 2023; 21:457. [PMID: 37623738 PMCID: PMC10456462 DOI: 10.3390/md21080457] [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: 07/26/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 08/26/2023] Open
Abstract
To explore the steroidal constituents of the soft coral Lobophytum sp. at the coast of Xuwen County, Guangdong Province, China, a chemical investigation of the above-mentioned soft coral was carried out. After repeated column chromatography over silica gel, Sephadex LH-20, and reversed-phase HPLC, six new steroids, namely lobosteroids A-F (1-6), along with four known compounds 7-10, were obtained. Their structures were determined by extensive spectroscopic analysis and comparison with the spectral data reported in the literature. Among them, the absolute configuration of 1 was determined by X-ray diffraction analysis using Cu Kα radiation. These steroids were characterized by either the presence of an α,β-α',β'-unsaturated carbonyl, or an α,β-unsaturated carbonyl moiety in ring A, or the existence of a 5α,8α-epidioxy system in ring B, as well as diverse oxidation of side chains. The antibacterial bioassays showed that all isolated steroids exhibited significant inhibitory activities against the fish pathogenic bacteria Streptococcus parauberis FP KSP28, Phoyobacterium damselae FP2244, and Streptococcus parauberis SPOF3K, with IC90 values ranging from 0.1 to 11.0 µM. Meanwhile, compounds 2 and 6-10 displayed potent inhibitory effects against the vancomycin-resistant Enterococcus faecium bacterium G7 with IC90 values ranging from 4.4 to 18.3 µM. Therefore, ten highly oxidized steroids with strong antibacterial activities were isolated from the Chinese soft coral Lobophytum sp., which could be developed as new chemotypes of antibacterial drug leads.
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Affiliation(s)
- Zi-Yi Xia
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China;
| | - Man-Man Sun
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 Binhai East Road, High-Tech Zone, Yantai 264117, China; (M.-M.S.); (Y.J.); (L.-G.Y.); (M.-Z.S.)
| | - Yang Jin
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 Binhai East Road, High-Tech Zone, Yantai 264117, China; (M.-M.S.); (Y.J.); (L.-G.Y.); (M.-Z.S.)
| | - Li-Gong Yao
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 Binhai East Road, High-Tech Zone, Yantai 264117, China; (M.-M.S.); (Y.J.); (L.-G.Y.); (M.-Z.S.)
| | - Ming-Zhi Su
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 Binhai East Road, High-Tech Zone, Yantai 264117, China; (M.-M.S.); (Y.J.); (L.-G.Y.); (M.-Z.S.)
| | - Lin-Fu Liang
- College of Materials Science and Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
| | - Hong Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China;
| | - Yue-Wei Guo
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China;
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 198 Binhai East Road, High-Tech Zone, Yantai 264117, China; (M.-M.S.); (Y.J.); (L.-G.Y.); (M.-Z.S.)
- School of Medicine, Shanghai University, 99 Shangda Road, Bao Shan District, Shanghai 200444, China
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7
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Li Y, Li L, Guo C, Yan Q, Zhou H, Wang Y, Liu ZQ, Li Z. Nitro-Spirocyclization of Biaryl Ynones with tert-Butyl Nitrite: Access to NO 2-Substituted Spiro[5,5]trienones. J Org Chem 2023; 88:4854-4862. [PMID: 36947717 DOI: 10.1021/acs.joc.3c00087] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
A metal/peroxide-free involved simple cascade 6-exo-trig spirocyclization of tert-butyl nitrite with biaryl ynones has been finished, which resulted in various NO2-modified spiro[5,5]trienones with good regioselectivity/yields. A variety of scaled-up experiments, reduction/epoxidation operations, and mechanistic studies were performed to verify the merits and spirocyclization process of this radical system. Finally, the structure of the spirocycles was confirmed by single-crystal X-ray diffraction.
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Affiliation(s)
- Yang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Lijun Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Changyou Guo
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Qinqin Yan
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Hongxun Zhou
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Ying Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
| | - Zhong-Quan Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China
| | - Zejiang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei 071002, PR China
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8
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Lv Y, Hou ZW, Wang Y, Li P, Wang L. Electrochemical monofluoroalkylation cyclization of N-arylacrylamides to construct monofluorinated 2-oxindoles. Org Biomol Chem 2023; 21:1014-1020. [PMID: 36602181 DOI: 10.1039/d2ob01883g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An electrochemical monofluoroalkylation cyclization of N-arylacrylamides to synthesize monofluorinated 2-oxindoles has been developed, which employs common dimethyl 2-fluoromalonate as a monofluoroalkyl radical precursor and obviates the use of prefunctionalized monofluoroalkylation reagents and sacrificial oxidants. A variety of monofluorinated nitrogen-containing heterocyclic compounds were efficiently obtained with satisfactory yields from readily available materials.
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Affiliation(s)
- Yanxia Lv
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, P. R. China. .,Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Zhong-Wei Hou
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, P. R. China.
| | - Yi Wang
- The Second Hospital of Anhui Medical University, Heifei, Anhui 230601, P. R. China
| | - Pinhua Li
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Lei Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, P. R. China. .,Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.,The Second Hospital of Anhui Medical University, Heifei, Anhui 230601, P. R. China
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9
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Li L, Hou ZW, Li P, Wang L. Electrochemical Dearomatizing Spirocyclization of Alkynes with Dimethyl 2-Benzylmalonate s to Spiro[4.5]deca-trienones. J Org Chem 2022; 87:8697-8708. [PMID: 35679486 DOI: 10.1021/acs.joc.2c00939] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
An electrochemical dearomatizing spirocyclization of alkynes with dimethyl 2-benzylmalonates for the preparation of spiro[4.5]deca-trienones has been developed. This approach adopts ferrocene (Cp2Fe) as an electrocatalyst to produce carbon-centered radical intermediates from C-H-based malonates, which obviates the forthputting of noble-metal reagents, sacrificial chemical oxidants and 2-bromomalonates. A wide variety of spiro compounds are efficiently prepared with satisfactory results under mild conditions.
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Affiliation(s)
- Laiqiang Li
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China.,Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Zhong-Wei Hou
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Pinhua Li
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China.,Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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10
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Ning C, Rui KH, Wei Y, Shi M. Rh(i)-catalyzed dimerization of ene-vinylidenecyclopropanes for the construction of spiro[4,5]decanes and mechanistic studies. Chem Sci 2022; 13:7310-7317. [PMID: 35799819 PMCID: PMC9214856 DOI: 10.1039/d1sc06986a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 05/31/2022] [Indexed: 07/22/2023] Open
Abstract
Rh(i) complex catalyzed dimerization of ene-vinylidenecyclopropanes took place smoothly to construct a series of products containing spiro[4,5]decane skeletons featuring a simple operation procedure, mild reaction conditions, and good functional group tolerance. In this paper, the combination of experimental and computational studies reveals a counterion-assisted Rh(i)-Rh(iii)-Rh(v)-Rh(iii)-Rh(i) catalytic cycle involving tandem oxidative cyclometallation/reductive elimination/selective oxidative addition/selective reductive elimination/reductive elimination steps; in addition, a pentavalent spiro-rhodium intermediate is identified as the key intermediate in this dimerization reaction upon DFT calculation.
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Affiliation(s)
- Chao Ning
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| | - Kang-Hua Rui
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry & Molecular Engineering, East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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11
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Peng S, He J, Yang L, Zhang H, Li H, Lang M, Chen C, Wang J. PIDA-Promoted/HFIP-Controlled Dearomative Spirocyclization of Phenolic Ketones via a Spirocyclohexadienone-Oxocarbenium Cation Species. J Org Chem 2022; 87:6247-6262. [DOI: 10.1021/acs.joc.2c00482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shiyong Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Jieyin He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Liangliang Yang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Hong Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Hongguang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Ming Lang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Chao Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, P. R. China
| | - Jian Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, P. R. China
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12
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Pan Y, Ren W, Zhang Z, Luo F, Hou X, Li X, Yang YF, Wang Y. Tandem 1,6-addition/cyclopropanation/rearrangement reaction of vinylogous para-quinone methides with 3-chlorooxindoles: construction of vicinal quaternary carbon centers. Org Chem Front 2022. [DOI: 10.1039/d2qo00471b] [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
A novel tandem 1,6-addition/cyclopropanation/rearrangement reaction of vinylogous para-quinone methides with 3-chlorooxindoles has been developed, providing dispirooxindole–cyclopentane–cyclohexadienones with vicinal quaternary carbon centers.
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Affiliation(s)
- Yuan Pan
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Weiwu Ren
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology (QNLM), Qingdao 266237, China
| | - Zhanhao Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Fengbiao Luo
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xiaohan Hou
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xiaoyang Li
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Yun-Fang Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Yang Wang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology (QNLM), Qingdao 266237, China
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13
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Sun H, He Y, Guo W. Pd-Catalyzed asymmetric decarboxylation for the construction of spiro[4.5]deca-6,9-dien-8-ones featuring vicinal quaternary carbons. Org Chem Front 2022. [DOI: 10.1039/d2qo00831a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A Pd-catalyzed decarboxylative strategy for the asymmetric construction of spiro[4.5]deca-6,9-dien-8-ones is reported. The epimerization of the resultant products occurred under otherwise Pd-catalysis.
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Affiliation(s)
- Haiyu Sun
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Yanxiang Road 99, Xi'an 710045, China
| | - Yicheng He
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Yanxiang Road 99, Xi'an 710045, China
| | - Wusheng Guo
- Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, Yanxiang Road 99, Xi'an 710045, China
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14
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Li JN, Li ZJ, Shen LY, Li P, Zhang Y, Yang WC. Selective polychloromethylation and halogenation of alkynes with polyhaloalkanes. Org Biomol Chem 2022; 20:6659-6666. [DOI: 10.1039/d2ob01053d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We disclosed a selective polychloromethylation and halogenation reaction of alkynes via a radical addition/spirocyclization cascade sequence, in which applying polyhaloalkanes as the precursor of polyhalomethyl and halogen radical. Across this...
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15
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Xia D, Shen LY, Zhang Y, Yang WC. Radical spirocyclization of biaryl ynones for the construction of NO 2-containing spiro[5.5]trienones. NEW J CHEM 2022. [DOI: 10.1039/d2nj03670c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
An efficient 6-exo-trig radical cascade reaction of biaryl ynones with NaNO2 was developed to afford nitro-functionalized spiro[5.5]trienones with yields of up to 88%.
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Affiliation(s)
- Dong Xia
- College of Pharmacy, Jiangsu Vocational College of Medicine, Yancheng, 224005, P. R. China
| | - Liu-Yu Shen
- Guangling College and School of Plant Protection, Yangzhou University, Yangzhou, 225009, P. R. China
| | - Yicheng Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui, 235000, P. R. China
| | - Wen-Chao Yang
- Guangling College and School of Plant Protection, Yangzhou University, Yangzhou, 225009, P. R. China
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16
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Chen S, Xia Y, Feng W, You K, Mao G, Deng GJ. Cu-Catalyzed synthesis of spiroimidazole derivatives via an indolyl mediated cyclization–rearrangement reaction. Org Chem Front 2022. [DOI: 10.1039/d2qo01237e] [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
A novel Cu-catalyzed synthesis of structurally valuable spiroimidazole derivatives from 2-(indol-3-yl)cyclohexanones and amidines via an indolyl mediated cyclization–rearrangement reaction is described.
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Affiliation(s)
- Shanping Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Yi Xia
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Wei Feng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Kuiyi You
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Guojiang Mao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
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17
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Ermolenko EV, Imbs AB, Gloriozova TA, Poroikov VV, Sikorskaya TV, Dembitsky VM. Chemical Diversity of Soft Coral Steroids and Their Pharmacological Activities. Mar Drugs 2020; 18:E613. [PMID: 33276570 PMCID: PMC7761492 DOI: 10.3390/md18120613] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/21/2020] [Accepted: 11/26/2020] [Indexed: 02/07/2023] Open
Abstract
The review is devoted to the chemical diversity of steroids produced by soft corals and their determined and potential activities. There are about 200 steroids that belong to different types of steroids such as secosteroids, spirosteroids, epoxy- and peroxy-steroids, steroid glycosides, halogenated steroids, polyoxygenated steroids and steroids containing sulfur or nitrogen heteroatoms. Of greatest interest is the pharmacological activity of these steroids. More than 40 steroids exhibit antitumor and related activity with a confidence level of over 90 percent. A group of 32 steroids shows anti-hypercholesterolemic activity with over 90 percent confidence. Ten steroids exhibit anti-inflammatory activity and 20 steroids can be classified as respiratory analeptic drugs. Several steroids exhibit rather rare and very specific activities. Steroids exhibit anti-osteoporotic properties and can be used to treat osteoporosis, as well as have strong anti-eczemic and anti-psoriatic properties and antispasmodic properties. Thus, this review is probably the first and exclusive to present the known as well as the potential pharmacological activities of 200 marine steroids.
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Affiliation(s)
- Ekaterina V. Ermolenko
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 17 Palchevsky Str., 690041 Vladivostok, Russia; (E.V.E.); (A.B.I.); (T.V.S.)
| | - Andrey B. Imbs
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 17 Palchevsky Str., 690041 Vladivostok, Russia; (E.V.E.); (A.B.I.); (T.V.S.)
| | - Tatyana A. Gloriozova
- Institute of Biomedical Chemistry, bldg. 8, 10 Pogodinskaya Str., 119121 Moscow, Russia; (T.A.G.); (V.V.P.)
| | - Vladimir V. Poroikov
- Institute of Biomedical Chemistry, bldg. 8, 10 Pogodinskaya Str., 119121 Moscow, Russia; (T.A.G.); (V.V.P.)
| | - Tatyana V. Sikorskaya
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 17 Palchevsky Str., 690041 Vladivostok, Russia; (E.V.E.); (A.B.I.); (T.V.S.)
| | - Valery M. Dembitsky
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 17 Palchevsky Str., 690041 Vladivostok, Russia; (E.V.E.); (A.B.I.); (T.V.S.)
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada
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18
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Jia ZL, An XT, Deng YH, Wang HB, Gan KJ, Zhang J, Zhao XH, Fan CA. Palladium-Catalyzed Asymmetric (2+3) Annulation of p-Quinone Methides with Trimethylenemethanes: Enantioselective Synthesis of Functionalized Chiral Spirocyclopentyl p-Dienones. Org Lett 2020; 22:4171-4175. [DOI: 10.1021/acs.orglett.0c01252] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi-Long Jia
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Xian-Tao An
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Yu-Hua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Hui-Bin Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Kang-Ji Gan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Jing Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Xian-He Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
| | - Chun-An Fan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou 730000, China
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19
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Zuo HD, Hao WJ, Zhu CF, Guo C, Tu SJ, Jiang B. Electrochemical Annulation–Iodosulfonylation of 1,5-Enyne-containing para-Quinone Methides (p-QMs) to Access (E)-Spiroindenes. Org Lett 2020; 22:4471-4477. [DOI: 10.1021/acs.orglett.0c01470] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hang-Dong Zuo
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
- College of Chemistry and Molecular Engineering and Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Chi-Fan Zhu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
- College of Chemistry and Molecular Engineering and Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu P. R. China
| | - Cheng Guo
- College of Chemistry and Molecular Engineering and Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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20
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Dong W, Yuan Y, Xie X, Zhang Z. Visible-Light-Driven Dearomatization Reaction toward the Formation of Spiro[4.5]deca-1,6,9-trien-8-ones. Org Lett 2020; 22:528-532. [DOI: 10.1021/acs.orglett.9b04283] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wuheng Dong
- Medicine Center, Guangxi University of Science and Technology, Liuzhou, Guangxi 545006, China
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yao Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiaomin Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhaoguo Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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21
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Dong W, Yuan Y, Gao X, Keranmu M, Li W, Xie X, Zhang Z. Visible-Light-Induced Intermolecular Dearomative Cyclization of 2-Bromo-1,3-dicarbonyl Compounds and Alkynes: Synthesis of Spiro[4.5]deca-1,6,9-trien-8-ones. Org Lett 2018; 20:5762-5765. [PMID: 30192154 DOI: 10.1021/acs.orglett.8b02463] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A visible-light-induced photocatalytic intermolecular dearomative cyclization of 2-bromo-1,3-dicarbonyl compounds and alkynes afforded biologically important spirocarbocycle structures in moderate to good yields via a 5-exo-dig radical cyclization under mild reaction conditions. A 5.0 mmol scale dearomatization reaction proceeded smoothly with 95% yield even when the catalyst loading was reduced to 0.1 mol %, suggesting that this method was suitable for large-scale synthesis.
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Affiliation(s)
- Wuheng Dong
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Yao Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xiaoshuang Gao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Miladili Keranmu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Wanfang Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Xiaomin Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China
| | - Zhaoguo Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
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22
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Porras G, Díaz-Marrero A, de la Rosa J, D'Croz L, de Pablo N, Perdomo G, Cózar-Castellano I, Darias J, Cueto M. Cembranoids from Eunicea sp. enhance insulin-producing cells proliferation. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Gallardo AB, Cueto M, Díaz-Marrero AR, de la Rosa JM, Fajardo V, San-Martín A, Darias J. A set of biogenetically interesting polyhalogenated acetogenins from Ptilonia magellanica. PHYTOCHEMISTRY 2018; 145:111-120. [PMID: 29126019 DOI: 10.1016/j.phytochem.2017.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/18/2017] [Accepted: 06/20/2017] [Indexed: 06/07/2023]
Abstract
Ptilonines A-F, pyranosylmagellanicus D-E and magellenediol are previously undescribed acetogenins isolated from the red alga Ptilonia magellanica. Their structures were determined from spectroscopic evidence. The absolute configuration of the known pyranosylmagellanicus A, was established by derivatization with (R)- and (S)-α-methoxy -α-phenylacetic acids (MPA). Ptilonines exhibit an unusual halogenation pattern, that may confer evolutionary advantages to Ptilonia magellanica, for which a biogenetic origin is proposed. The antimicrobial effect of some of these compounds was evaluated.
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Affiliation(s)
- Amalia B Gallardo
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico F. Sánchez, 3, Apdo. 195, 38206, La Laguna, Tenerife, Spain; Facultad de Ciencias, Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Avda Bulnes, 01855, Punta Arenas, Chile
| | - Mercedes Cueto
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico F. Sánchez, 3, Apdo. 195, 38206, La Laguna, Tenerife, Spain
| | - Ana R Díaz-Marrero
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico F. Sánchez, 3, Apdo. 195, 38206, La Laguna, Tenerife, Spain
| | - José M de la Rosa
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico F. Sánchez, 3, Apdo. 195, 38206, La Laguna, Tenerife, Spain
| | - Victor Fajardo
- Facultad de Ciencias, Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Avda Bulnes, 01855, Punta Arenas, Chile
| | - Aurelio San-Martín
- Facultad de Ciencias, Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Avda Bulnes, 01855, Punta Arenas, Chile
| | - José Darias
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico F. Sánchez, 3, Apdo. 195, 38206, La Laguna, Tenerife, Spain.
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24
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Yuan Z, Liu L, Pan R, Yao H, Lin A. Silver-Catalyzed Cascade 1,6-Addition/Cyclization of para-Quinone Methides with Propargyl Malonates: An Approach to Spiro[4.5]deca-6,9-dien-8-ones. J Org Chem 2017; 82:8743-8751. [DOI: 10.1021/acs.joc.7b01400] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zhenbo Yuan
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Lina Liu
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Rui Pan
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Hequan Yao
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Aijun Lin
- State Key Laboratory of Natural
Medicines (SKLNM) and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P.R. China
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25
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Nguyen Hoai N, Nguyen Thi H, Tran Thi Hong H, Nguyen Van T, Nguyen Xuan C, Do Cong T, Phan Van K, Chau Van M. Pregnane steroids from the Vietnamese octocoral Carijoa riisei. Nat Prod Res 2017; 31:2435-2440. [DOI: 10.1080/14786419.2017.1324964] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Nam Nguyen Hoai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Huong Nguyen Thi
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Hanh Tran Thi Hong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Thanh Nguyen Van
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Cuong Nguyen Xuan
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
| | - Thung Do Cong
- Institute of Marine Environment and Resources, VAST, Haiphong, Vietnam
| | - Kiem Phan Van
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Minh Chau Van
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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26
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Klyflaccisteroids K-M, bioactive steroidal derivatives from a soft coral Klyxum flaccidum. Bioorg Med Chem Lett 2017; 27:1220-1224. [PMID: 28159416 DOI: 10.1016/j.bmcl.2017.01.060] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 01/12/2017] [Accepted: 01/19/2017] [Indexed: 11/21/2022]
Abstract
New steroids, klyflaccisteroids K-M (1-3), were isolated from a soft coral Klyxum flaccidum. Their structures were elucidated on the basis of extensive spectroscopic analysis. Klyflaccisteroid K (1) is the unique 9,11-secosteroid with a 5,8-epidioxy-9-ene functional group. Klyflaccisteroid L (2) has an unusual 11-norsteroid skeleton and is the first example of 11-oxasteroid isolated from natural sources. Cytotoxicity assay showed that 1 and 3 possessed moderate to weak cytotoxicity against these cancer cells. Compound 1 was also found to display significant anti-inflammatory activity of suppressing superoxide anion generation (O2-) and elastase release, and compound 3 was found to show notable anti-inflammatory activity toward inhibition of elasstase release, too.
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27
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Bioactive Steroids from the Formosan Soft Coral Umbellulifera petasites. Mar Drugs 2016; 14:md14100180. [PMID: 27727166 PMCID: PMC5082328 DOI: 10.3390/md14100180] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 09/19/2016] [Accepted: 09/21/2016] [Indexed: 11/23/2022] Open
Abstract
Three new steroids, petasitosterones A and B (1 and 2) and a spirosteroid petasitosterone C (3), along with eight known steroids (4–11), were isolated from a Formosan marine soft coral Umbellulifera petasites. The structures of these compounds were elucidated by extensive spectroscopic analysis and comparison of spectroscopic data with those reported. Compound 3 is a marine steroid with a rarely found A/B spiro[4,5]decane ring system. Compounds 1–3 and 5 displayed inhibitory activity against the proliferation of a limited panel of cancer cell lines, whereas 2 and 5 exhibited significant anti-inflammatory activity to inhibit nitric oxide (NO) production. The inhibitory activities for superoxide anion generation and elastase release of compounds 1–11 were also examined to evaluate the anti-inflammatory potential, and 2–4 were shown to exhibit significant activities.
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28
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Cardoso-Martínez F, de la Rosa JM, Díaz-Marrero AR, Darias J, D'Croz L, Jiménez-Antón MD, Corral MJ, García R, Alunda JM, Cueto M. Oxysterols from an octocoral of the genus Gorgonia from the eastern Pacific of Panama. RSC Adv 2016. [DOI: 10.1039/c6ra04521a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Eighteen new oxysterols were isolated from a previously undescribed octocoral of the genusGorgonia. Antimicrobial and antileishmanial properties of these compounds have been evaluated.
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Affiliation(s)
| | - José M. de la Rosa
- Instituto de Productos Naturales y Agrobiología del CSIC
- 38206 La Laguna
- Spain
| | - Ana R. Díaz-Marrero
- Instituto de Productos Naturales y Agrobiología del CSIC
- 38206 La Laguna
- Spain
| | - José Darias
- Instituto de Productos Naturales y Agrobiología del CSIC
- 38206 La Laguna
- Spain
| | - Luis D'Croz
- Departamento de Biología Marina y Limnología
- Universidad de Panamá
- Panama
- Smithsonian Tropical Research Institute
- STRI
| | - M. Dolores Jiménez-Antón
- Departamento de Sanidad Animal (Grupo UCM 910993 ICPVet)
- Facultad de Veterinaria
- Universidad Complutense de Madrid
- Madrid
- Spain
| | - M. Jesús Corral
- Departamento de Sanidad Animal (Grupo UCM 910993 ICPVet)
- Facultad de Veterinaria
- Universidad Complutense de Madrid
- Madrid
- Spain
| | - Rocío García
- Departamento de Sanidad Animal (Grupo UCM 910993 ICPVet)
- Facultad de Veterinaria
- Universidad Complutense de Madrid
- Madrid
- Spain
| | - José M. Alunda
- Departamento de Sanidad Animal (Grupo UCM 910993 ICPVet)
- Facultad de Veterinaria
- Universidad Complutense de Madrid
- Madrid
- Spain
| | - Mercedes Cueto
- Instituto de Productos Naturales y Agrobiología del CSIC
- 38206 La Laguna
- Spain
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Cardoso-Martínez F, de la Rosa JM, Díaz-Marrero AR, Darias J, Cerella C, Diederich M, Cueto M. Tanzawaic acids isolated from a marine-derived fungus of the genus Penicillium with cytotoxic activities. Org Biomol Chem 2015; 13:7248-56. [PMID: 26055397 DOI: 10.1039/c5ob00773a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Tanzawaic acids M (1), N (2), O (3) and P (4) and the known tanzawaic acids B (5) and E (6), have been isolated from an extract of a cultured marine-derived fungus (strain CF07370) identified as a member of the genus Penicillium. The structures of 1-4 were determined based on spectroscopic evidence. The antimicrobial and cytotoxic activities of compounds 1-6 were evaluated.
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Affiliation(s)
- Faviola Cardoso-Martínez
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico F. Sánchez, 3, 38206 La Laguna, Tenerife, Spain.
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Cardoso-Martínez F, de la Rosa JM, Díaz-Marrero AR, Darias J, D'Croz L, Cerella C, Diederich M, Cueto M. Oximoaspergillimide, a Fungal Derivative from a Marine Isolate ofAspergillussp. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403668] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jagtap PR, Ford L, Deister E, Pohl R, Císařová I, Hodek J, Weber J, Mackman R, Bahador G, Jahn U. Highly functionalized and potent antiviral cyclopentane derivatives formed by a tandem process consisting of organometallic, transition-metal-catalyzed, and radical reaction steps. Chemistry 2014; 20:10298-304. [PMID: 25043655 DOI: 10.1002/chem.201402595] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Indexed: 11/11/2022]
Abstract
A simple modular tandem approach to multiply substituted cyclopentane derivatives is reported, which succeeds by joining organometallic addition, conjugate addition, radical cyclization, and oxygenation steps. The key steps enabling this tandem process are the thus far rarely used isomerization of allylic alkoxides to enolates and single-electron transfer to merge the organometallic step with the radical and oxygenation chemistry. This controlled lineup of multiple electronically contrasting reactive intermediates provides versatile access to highly functionalized cyclopentane derivatives from very simple and readily available commodity precursors. The antiviral activity of the synthesized compounds was screened and a number of compounds showed potent activity against hepatitis C and dengue viruses.
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Affiliation(s)
- Pratap R Jagtap
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo namesti 2, 16610 Prague (Czech Republic)
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Almeida MTR, Moritz MIG, Capel KC, Pérez CD, Schenkel EP. Chemical and biological aspects of octocorals from the Brazilian coast. REVISTA BRASILEIRA DE FARMACOGNOSIA 2014. [DOI: 10.1016/j.bjp.2014.05.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
This review covers the literature published in 2011 for marine natural products, with 870 citations (558 for the period January to December 2011) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1152 for 2011), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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Zhao HY, Shao CL, Li ZY, Han L, Cao F, Wang CY. Bioactive pregnane steroids from a South China Sea gorgonian Carijoa sp. Molecules 2013; 18:3458-66. [PMID: 23503119 PMCID: PMC6270022 DOI: 10.3390/molecules18033458] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 02/28/2013] [Accepted: 03/05/2013] [Indexed: 11/16/2022] Open
Abstract
A new pregnane steroid, 1, and three known analogues 2-4, have been isolated from a gorgonian Carijoa sp. collected from the South China Sea. The planar structure and relative configuration of 1 were elucidated from comprehensive spectroscopic data. Its absolute configuration was determined by application of the modified Mosher method. Compounds 1, 3 and 4 exhibited cytotoxicity against the human hepatoma cell line Bel-7402, with IC50 values of 9.33, 11.02 and 18.68 µM, respectively. Additionally, compound 1 exhibited promising antibacterial activity against Pseudomona puido, with a MIC value of 31 nM, which is approximately 5-fold more potent than ciprofloxacin (MIC = 156 nM).
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Affiliation(s)
- Hong-Ying Zhao
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; E-Mails: (H.-Y.Z.); (C.-L.S.); (L.H.); (F.C.)
- Marine Biotechnology Laboratory, State Key Laboratory of Microbial Metabolism, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chang-Lun Shao
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; E-Mails: (H.-Y.Z.); (C.-L.S.); (L.H.); (F.C.)
| | - Zhi-Yong Li
- Marine Biotechnology Laboratory, State Key Laboratory of Microbial Metabolism, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lei Han
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; E-Mails: (H.-Y.Z.); (C.-L.S.); (L.H.); (F.C.)
| | - Fei Cao
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; E-Mails: (H.-Y.Z.); (C.-L.S.); (L.H.); (F.C.)
| | - Chang-Yun Wang
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; E-Mails: (H.-Y.Z.); (C.-L.S.); (L.H.); (F.C.)
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Fang HY, Liaw CC, Chao CH, Wen ZH, Wu YC, Hsu CH, Dai CF, Sheu JH. Bioactive pregnane-type steroids from the soft coral Scleronephthya gracillimum. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.09.060] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Díaz-Marrero AR, de la Rosa JM, Brito I, Darias J, Cueto M. Dactylomelatriol, a biogenetically intriguing omphalane-derived marine sesquiterpene. JOURNAL OF NATURAL PRODUCTS 2012; 75:115-118. [PMID: 22220686 DOI: 10.1021/np200845f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Dactylomelatriol (1), obtained from the sea hare Aplysia dactylomela, is the first naturally occurring omphalane-derived sesquiterpene from the marine environment. From this species the known chamigrene and modified bisabolene sesquiterpenes 2-6 were also isolated. The structure and relative configuration of 1 were established by spectroscopic evidence. Its chemical structure is related to omphalic acid, the unique terrestrial-derived omphalane sesquiterpene isolated from a liverwort. A biogenetic route for this compound is proposed. The antimicrobial activities of compounds 1-6 were evaluated against a panel of microorganisms.
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Affiliation(s)
- Ana-R Díaz-Marrero
- Instituto de Productos Naturales y Agrobiología (CSIC), Avenida Astrofísico F. Sánchez, 3, 38206 La Laguna, Tenerife, Spain
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