1
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Laoufi A, Belboukhari N, Sekkoum K, Aboul-Enein HY. Synthesis and chiral separation of atropisomers of 4,5-Di methyl ∆ 4 N-phenyl N-aryl imidazoline-2-thione derivatives. Chirality 2021; 33:264-273. [PMID: 33769631 DOI: 10.1002/chir.23306] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/16/2021] [Accepted: 03/10/2021] [Indexed: 11/06/2022]
Abstract
Synthesis of three chiral 4,5-Di methyl ∆4 N-phenyl N-aryl imidazole-2-thione derivatives was obtained by the condensation reaction of thiourea derivatives with α-hydroxy ketone. The structure of these compounds has been characterized by using spectroscopic methods (UV, IR, 1 H NMR, and 13 C NMR). The 4,5-Di methyl ∆4 N-phenyl N-aryl imidazole-2-thiones display a chiral axis around the N-C bond linking between the nitrogen of the heterocyclic framework and the carbon of the aryl group. Screening on chiral analysis of the atropisomers of these derivatives was performed by high-performance liquid chromatography method on seven chiral selectors based on polysaccharides consisting of amylose and cellulose, namely, Chiralpak®AD, Chiralcel® OD, Chiralcel® OD-H, Chiralcel® OJ, Chiralcel® OD-3R, Chiralcel® OZ-3, and Chiralpak® AS-3R. The impact of ortho-substituent in the resolution of 4,5-Di methyl ∆4 N-phenyl N-aryl imidazole-2-thione derivatives was also studied in this work.
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Affiliation(s)
- Aicha Laoufi
- Bioactive Molecules and Chiral Separation Laboratory, Faculty of Science and Technology, Tahri Mohamed University, Bechar, Algeria.,Faculty of Mathematics and Material Sciences, University of Kasedi Merbah, Ouargla, Algeria
| | - Nasser Belboukhari
- Bioactive Molecules and Chiral Separation Laboratory, Faculty of Science and Technology, Tahri Mohamed University, Bechar, Algeria
| | - Khaled Sekkoum
- Bioactive Molecules and Chiral Separation Laboratory, Faculty of Science and Technology, Tahri Mohamed University, Bechar, Algeria
| | - Hassan Y Aboul-Enein
- Pharmaceutical and Medicinal Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Center, Dokki, Giza, Egypt
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2
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Zhang W. Heck macrocyclization in natural product total synthesis. Nat Prod Rep 2021; 38:1109-1135. [PMID: 33662070 DOI: 10.1039/d0np00087f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: 1981-2020 Heck macrocyclization is a logical extension of the award-winning Mizoroki-Heck reaction. Through covalent linking of two otherwise discrete coupling partners, the resultant chimeric substrate is transformed into a large ring with enhanced rigidity and unique functional group disposition. Pioneered in the early 1980s, this methodology has evolved into a competent option for creating diverse macrocycles. Despite its growing influence, hitherto no systematic survey has ever appeared in the literature. The present review delineates the state-of-the-art of Heck macrocyclization in the context of natural product synthesis. Sixteen selected cases, each examined from a different perspective, coalesce into the view that the title reaction is a viable tool for synthesis-enabled macrocycle research.
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Affiliation(s)
- Weicheng Zhang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300353, People's Republic of China.
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3
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Xi J, Gu Z. Palladium‐Catalzyed
Atroposelective
16‐Membered
Macrocyclization: Total Synthesis of Isoplagiochin D
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Junwei Xi
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Zhenhua Gu
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
- Center for Excellence in Molecular Synthesis of CAS, Hefei Anhui 230026 China
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4
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Li Y, Xu Z, Zhu R, Zhou J, Zong Y, Zhang J, Zhu M, Jin X, Qiao Y, Zheng H, Lou H. Probing the Interconversion of Labdane Lactones from the Chinese Liverwort Pallavicinia ambigua. Org Lett 2019; 22:510-514. [DOI: 10.1021/acs.orglett.9b04270] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yi Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Zejun Xu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Rongxiu Zhu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jinchuan Zhou
- School of Pharmacy, Linyi University, Linyi 276000, China
| | - Yan Zong
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Jiaozhen Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Mingzhu Zhu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Xueyang Jin
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Yanan Qiao
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Hongbo Zheng
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Hongxiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
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5
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Hou JQ, Wang BL, Han C, Xu J, Wang Z, He QW, Zhang PL, Zhao SM, Pei X, Wang H. Atropisomeric meroterpenoids with rare triketone-phloroglucinol-terpene hybrids from Baeckea frutescens. Org Biomol Chem 2019; 16:8513-8524. [PMID: 30357224 DOI: 10.1039/c8ob02433b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Baefrutones A-F (1-6), six new meroterpenoids with rare triketone-phloroglucinol-monoterpene/sesquiterpene frameworks, together with their biosynthetically related intermediate (±)-baeckenon B (7), were isolated from the aerial part of Baeckea frutescens under the guidance of HPLC-Q/TOF-MS2 investigation. Compounds 1-4 represent the first examples of natural meroterpenoids existing as four pairs of inseparable diastereomeric atropisomers (2 : 1, 1H NMR integration) caused by the restricted rotation around the C-6-C-7-C-1' bonds arising from the intramolecular hydrogen bond between C-1 carbonyl and 2'-OH. The discovery of these architectures not only largely enriched the chemodiversity of the meroterpenoid and atropisomer library, but also might be exciting and challenging for asymmetric organic synthesis. Their structures and absolute configurations were established by extensive spectroscopic analysis, X-ray diffraction, and ECD calculations. Compounds 5 and 6 were biomimetically synthesized from 7 and β-caryophyllene via a regioselective oxidative hetero-Diels-Alder reaction, thus providing access to the construction of the 6/6/9/4 tetracyclic ring system. The anti-inflammatory activities of these meroterpenoids were also discussed.
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Affiliation(s)
- Ji-Qin Hou
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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6
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Fayez S, Feineis D, Assi LA, Seo EJ, Efferth T, Bringmann G. Ancistrobreveines A–D and related dehydrogenated naphthylisoquinoline alkaloids with antiproliferative activities against leukemia cells, from the West African lianaAncistrocladus abbreviatus. RSC Adv 2019; 9:15738-15748. [PMID: 35521375 PMCID: PMC9064271 DOI: 10.1039/c9ra03105g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 05/14/2019] [Indexed: 11/28/2022] Open
Abstract
A unique series of six biaryl natural products displaying four different coupling types (5,1′, 7,1′, 7,8′, and 5,8′) were isolated from the roots of the West African liana Ancistrocladus abbreviatus (Ancistrocladaceae). Although at first sight structurally diverse, these secondary metabolites all have in common that they belong to the rare group of naphthylisoquinoline alkaloids with a fully dehydrogenated isoquinoline portion. Among the African Ancistrocladus species, A. abbreviatus is so far only the second one that was found to produce compounds with such a molecular entity. Here, we report on four new representatives, named ancistrobreveines A–D (12–14, and 6). They were identified along with the two known alkaloids 6-O-methylhamateine (4) and ent-dioncophylleine A (10). The two latter naphthylisoquinolines had so far only been detected in Ancistrocladus species from Southeast Asia. All of these fully dehydrogenated alkaloids have in common being optically active despite the absence of stereogenic centers, due to the presence of the rotationally hindered biaryl axis as the only element of chirality. Except for ent-dioncophylleine A (10), which lacks an oxygen function at C-6, the ancistrobreveines A–D (12–14, and 6) and 6-O-methylhamateine (4) are 6-oxygenated alkaloids, and are, thus, typical ‘Ancistrocladaceae-type’ compounds. Ancistrobreveine C (14), is the first – and so far only – example of a 7,8′-linked fully dehydrogenated naphthylisoquinoline discovered in nature that is configurationally stable at the biaryl axis. The stereostructures of the new alkaloids were established by spectroscopic (in particular HRESIMS, 1D and 2D NMR) and chiroptical (electronic circular dichroism) methods. Ancistrobreveine C (14) and 6-O-methylhamateine (4) exhibited strong antiproliferative activities against drug-sensitive acute lymphoblastic CCRF-CEM leukemia cells and their multidrug-resistant subline, CEM/ADR5000. Ancistrobreveines A–D belong to the rare group of naphthylisoquinoline alkaloids with a non-hydrogenated isoquinoline portion, some of them, like ancistrobreveine C, occurring in the plants only in a scalemic, yet nearly enantiopure form.![]()
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Affiliation(s)
- Shaimaa Fayez
- Institute of Organic Chemistry
- University of Würzburg
- D-97074 Würzburg
- Germany
| | - Doris Feineis
- Institute of Organic Chemistry
- University of Würzburg
- D-97074 Würzburg
- Germany
| | - Laurent Aké Assi
- Centre National de Floristique
- Conservatoire et Jardin Botanique
- Université d`Abidjan
- Abidjan 08
- Ivory Coast
| | - Ean-Jeong Seo
- Institute of Pharmacy and Biochemistry
- Department of Pharmaceutical Biology
- University of Mainz
- D-55128 Mainz
- Germany
| | - Thomas Efferth
- Institute of Pharmacy and Biochemistry
- Department of Pharmaceutical Biology
- University of Mainz
- D-55128 Mainz
- Germany
| | - Gerhard Bringmann
- Institute of Organic Chemistry
- University of Würzburg
- D-97074 Würzburg
- Germany
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7
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Meidlinger D, Marx L, Bordeianu C, Choppin S, Colobert F, Speicher A. Access to the Enantiopure Axially Chiral Cyclophane Isoplagiochin D through Atropo-diastereoselective Heck Coupling. Angew Chem Int Ed Engl 2018; 57:9160-9164. [DOI: 10.1002/anie.201803677] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/02/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Daniel Meidlinger
- Department of Organic Chemistry; Saarland University; Campus C4.2 66123 Saarbrücken Germany
| | - Lisa Marx
- Department of Organic Chemistry; Saarland University; Campus C4.2 66123 Saarbrücken Germany
| | - Catalina Bordeianu
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg France
| | - Sabine Choppin
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg France
| | - Françoise Colobert
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg France
| | - Andreas Speicher
- Department of Organic Chemistry; Saarland University; Campus C4.2 66123 Saarbrücken Germany
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8
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Meidlinger D, Marx L, Bordeianu C, Choppin S, Colobert F, Speicher A. Ein Zugang zum enantiomerenreinen axial chiralen Cyclophan Isoplagiochin D durch atrop-diastereoselektive Heck-Kupplung. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Daniel Meidlinger
- Institut für Organische Chemie; Universität des Saarlandes; Campus C4.2 66123 Saarbrücken Deutschland
| | - Lisa Marx
- Institut für Organische Chemie; Universität des Saarlandes; Campus C4.2 66123 Saarbrücken Deutschland
| | - Catalina Bordeianu
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg Frankreich
| | - Sabine Choppin
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg Frankreich
| | - Françoise Colobert
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg Frankreich
| | - Andreas Speicher
- Institut für Organische Chemie; Universität des Saarlandes; Campus C4.2 66123 Saarbrücken Deutschland
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9
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Liu BY, Zhang C, Zeng KW, Li J, Guo XY, Zhao MB, Tu PF, Jiang Y. Anti-Inflammatory Prenylated Phenylpropenols and Coumarin Derivatives from Murraya exotica. JOURNAL OF NATURAL PRODUCTS 2018; 81:22-33. [PMID: 29303577 DOI: 10.1021/acs.jnatprod.7b00518] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Three new prenylated phenylpropenols, exotiacetals A-C (1-3), 10 new coumarin derivatives, exotimarins A-I (4-13), and 35 known analogues (14-48) were isolated from the roots of Murraya exotica. The absolute configurations of the new compounds were assigned via comparison of their specific rotations, single-crystal X-ray diffraction data, Mosher's method, the ECD exciton coupling method, comparison of experimental and calculated ECD data, and the ECD data of the in situ formed transition metal complexes. Compounds 1-3, which possess an unprecedented hexahydro-1H-isochromen-1-ol system, are presumably biosynthesized from two prenylated p-coumaryl alcohol moieties via Diels-Alder [4+2] cycloaddition and cyclic hemiacetal formation reactions. Compounds 1, 28, 33, and 35 demonstrated inhibition against LPS-induced NO production in BV-2 microglial cells with IC50 values of 8.6 ± 0.3, 11.8 ± 0.9, 15.5 ± 0.9, and 16.9 ± 1.0 μM, respectively.
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Affiliation(s)
- Bing-Yu Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
| | - Chen Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
| | - Ke-Wu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
| | - Jun Li
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100029, People's Republic of China
| | - Xiao-Yu Guo
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
| | - Ming-Bo Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
| | - Yong Jiang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
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10
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Zhao P, Song C. Macrocyclic Bisbibenzyls: Properties and Synthesis. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2018. [DOI: 10.1016/b978-0-444-64068-0.00003-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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11
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Asakawa Y. The Isolation, Structure Elucidation, and Bio- and Total Synthesis of Bis-bibenzyls, from Liverworts and Their Biological Activity. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200845] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Little attention has been paid to the bryophytes for use in the human diet in spite of the presence of 23,000 species in the world. Some liverworts produce lipophilic terpenoids and phenolic bis-bibenzyls, possessing antimicrobial, antifungal, antiviral, cytotoxic, anti-oxidant, muscle relaxing, and antiobesity activities. In this review, the isolation, structures elucidation, bio- and total syntheses of bis-bibenzyls from several liverworts are discussed.
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Affiliation(s)
- Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
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12
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Xia HM, Li CJ, Yang JZ, Ma J, Li Y, Li L, Zhang DM. Hepatoprotective pyranocoumarins from the stems of Clausena emarginata. PHYTOCHEMISTRY 2016; 130:238-243. [PMID: 27289140 DOI: 10.1016/j.phytochem.2016.05.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/18/2016] [Accepted: 05/25/2016] [Indexed: 06/06/2023]
Abstract
Seven pyranocoumarins, clauemarmarins A-G, along with 6 known analogues were isolated from the stems of Clausena emarginata. Their structures were elucidated by extensive spectroscopic analyses, and the absolute stereochemistries at C-6″ of clauemarmarin B, C and D and the absolute configurations of clauemarmarin E, F and G were determined by ECD experiments. Compounds clauemarmarin C, D and two known analogues exhibited hepatoprotective activities against DL-galactosamine-induced damage in WB-F344 cells at the concentration of 10 μM.
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Affiliation(s)
- Hong-Min Xia
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China; Taishan Scholar-Distinguished Experts Position, Key Disciplines on Analysis of Traditional Chinese Medicine, Shandong Key Laboratory of Chinese Medicine Quality Standard Research, Shandong Academy of Chinese Medicine, Jinan, 250014, China
| | - Chuang-Jun Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jing-Zhi Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Jie Ma
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Yan Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Li Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Dong-Ming Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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13
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Towards the enantioselective synthesis of axially chiral cyclic bis(bibenzyls) through sulfoxide-controlled diastereoselective Suzuki coupling. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Xu CL, Wang JX, Li HL. Two new cyclic bisbibenzyl derivatives from Hebertus dicranus. Chin J Nat Med 2016; 14:457-61. [PMID: 27473964 DOI: 10.1016/s1875-5364(16)30043-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Indexed: 11/24/2022]
Abstract
In the present study, two new cyclic bisbibenzyls (1, 2) co-occuring with a known compound, isoplagiochins C (3) were isolated from Hebertus dicranus. The structures were determined mainly by extensive 1D and 2D NMR experiments, and the absolute configurations of 1 and 2 were established by the circular dichroism spectrum. Furthermore, all these three rare compounds were tested in vitro for inhibitory activity against the growth of human cancer cell lines (A549, HCT116, MDA-MB-231, and BEL7404) by the MTT assay, and compound 2 exhibited moderately inhibitory activity with IC50 values ranging from 13.89 to 31.62 μmol·L(-1). In conclusion, our results provided a basis for future development and modification of these compounds for cancer therapy.
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Affiliation(s)
- Chang-Long Xu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332000, China
| | - Jin-Xin Wang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Hui-Liang Li
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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15
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Shih HC, Kuo PC, Wu SJ, Hwang TL, Hung HY, Shen DY, Shieh PC, Liao YR, Lee EJ, Gu Q, Lee KH, Wu TS. Anti-inflammatory neolignans from the roots of Magnolia officinalis. Bioorg Med Chem 2016; 24:1439-45. [DOI: 10.1016/j.bmc.2016.01.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 01/15/2016] [Accepted: 01/25/2016] [Indexed: 02/04/2023]
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16
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Yang MS, Hu SM, Kong LY, Luo J. B-seco-29-nor-Limonoids from the stem barks of Toona ciliate var. yunnanensis. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Ni L, Ma J, Li CJ, Li L, Guo JM, Yuan SP, Hou Q, Guo Y, Zhang DM. Novel rearranged and highly oxygenated abietane diterpenoids from the leaves of Tripterygium wilfordii. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.085] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Zhang ZJ, Yang J, He J, Wu XD, Shao LD, Li Y, Huang SX, Li RT, Zhao QS. Vincamajorines A and B, monoterpenoid indole alkaloids with new carbon skeletons from Vinca major. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Xia HM, Li CJ, Yang JZ, Ma J, Chen XG, Zhang D, Li L, Zhang DM. A,D-seco-limonoids from the stems of Clausena emarginata. JOURNAL OF NATURAL PRODUCTS 2014; 77:784-91. [PMID: 24593150 DOI: 10.1021/np400797s] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Twelve new A,D-seco-limonoids, clauemargines A-L (1-12), and three known analogues were isolated from the stems of Clausena emarginata. The absolute configurations of 1 and 5 were confirmed by X-ray crystallography and ECD spectroscopy, respectively. Compounds 1, 2, 8-10, and 13 showed moderate inhibitory effects on LPS-induced NO production (IC50 values<10 μM).
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Affiliation(s)
- Hong-Min Xia
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
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20
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Wu HF, Zhang XP, Wang Y, Zhang JY, Ma GX, Tian Y, Wu LZ, Chen SL, Yang JS, Xu XD. Four new diterpenes from Aphanamixis polystachya. Fitoterapia 2013; 90:126-31. [DOI: 10.1016/j.fitote.2013.07.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2013] [Revised: 07/06/2013] [Accepted: 07/08/2013] [Indexed: 10/26/2022]
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21
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Enantiopure isoplagiochin C by directed deracemization through axis-to-axis chirality transfer. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Schaumlöffel A, Groh M, Knauer M, Speicher A, Bringmann G. Configurational Assignment of Cyclic Bisbibenzyls by HPLC-CD and Quantum-Chemical CD Calculations. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200873] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Groh M, Meidlinger D, Bringmann G, Speicher A. Atroposelective Heck Macrocyclization: Enantioselective Synthesis of Bis(bibenzylic) Natural Products. Org Lett 2012; 14:4548-51. [DOI: 10.1021/ol302132s] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthias Groh
- Department of Organic Chemistry, Saarland University, Campus, 66123 Saarbrücken, Germany, and Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Daniel Meidlinger
- Department of Organic Chemistry, Saarland University, Campus, 66123 Saarbrücken, Germany, and Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Gerhard Bringmann
- Department of Organic Chemistry, Saarland University, Campus, 66123 Saarbrücken, Germany, and Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Andreas Speicher
- Department of Organic Chemistry, Saarland University, Campus, 66123 Saarbrücken, Germany, and Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
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24
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Zhang F, Wang JS, Gu YC, Kong LY. Cytotoxic and anti-inflammatory triterpenoids from Toona ciliata. JOURNAL OF NATURAL PRODUCTS 2012; 75:538-546. [PMID: 22537362 DOI: 10.1021/np200579b] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Toonaciliatavarins A-H (1-8), including three new protolimonoids (1-3), two new tirucallane-type triterpenoids (4 and 5), and three new tetranortriterpenoids (6-8), and 10 known compounds were isolated from the stem barks of Toona ciliata Roem. var. henryi. Their structures were identified on the basis of spectroscopic analysis. The absolute configurations of 2 and 8 were determined by ECD calculation. The new isolates were evaluated for their cytotoxicities using six human cancer cell lines and also for their inhibitory effects on lipopolysaccharide-induced nitric oxide production in RAW264.7 cells. Compounds 4 and 5 showed moderate cytotoxicities, and the protolimonoids (1-3) exhibited marked inhibitory effects on LPS-stimulated NO production.
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Affiliation(s)
- Feng Zhang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
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Costantino V, Fattorusso E, Mangoni A, Perinu C, Teta R, Panza E, Ianaro A. Tedarenes A and B: Structural and Stereochemical Analysis of Two New Strained Cyclic Diarylheptanoids from the Marine Sponge Tedania ignis. J Org Chem 2012; 77:6377-83. [DOI: 10.1021/jo300295j] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Valeria Costantino
- The
NeaNat Group − Dipartimento di Chimica delle Sostanze Naturali and ‡Dipartimento
di Farmacologia Sperimentale, Università di Napoli Federico II, via Domenico Montesano 49, 80131
Napoli, Italy
| | - Ernesto Fattorusso
- The
NeaNat Group − Dipartimento di Chimica delle Sostanze Naturali and ‡Dipartimento
di Farmacologia Sperimentale, Università di Napoli Federico II, via Domenico Montesano 49, 80131
Napoli, Italy
| | - Alfonso Mangoni
- The
NeaNat Group − Dipartimento di Chimica delle Sostanze Naturali and ‡Dipartimento
di Farmacologia Sperimentale, Università di Napoli Federico II, via Domenico Montesano 49, 80131
Napoli, Italy
| | - Cristina Perinu
- The
NeaNat Group − Dipartimento di Chimica delle Sostanze Naturali and ‡Dipartimento
di Farmacologia Sperimentale, Università di Napoli Federico II, via Domenico Montesano 49, 80131
Napoli, Italy
| | - Roberta Teta
- The
NeaNat Group − Dipartimento di Chimica delle Sostanze Naturali and ‡Dipartimento
di Farmacologia Sperimentale, Università di Napoli Federico II, via Domenico Montesano 49, 80131
Napoli, Italy
| | - Elisabetta Panza
- The
NeaNat Group − Dipartimento di Chimica delle Sostanze Naturali and ‡Dipartimento
di Farmacologia Sperimentale, Università di Napoli Federico II, via Domenico Montesano 49, 80131
Napoli, Italy
| | - Angela Ianaro
- The
NeaNat Group − Dipartimento di Chimica delle Sostanze Naturali and ‡Dipartimento
di Farmacologia Sperimentale, Università di Napoli Federico II, via Domenico Montesano 49, 80131
Napoli, Italy
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Harrowven DC, Kostiuk SL. Macrocylic bisbibenzylnatural products and their chemical synthesis. Nat Prod Rep 2012; 29:223-42. [DOI: 10.1039/c1np00080b] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Gulder T, Baran PS. Strained cyclophane natural products: Macrocyclization at its limits. Nat Prod Rep 2012; 29:899-934. [DOI: 10.1039/c2np20034a] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Wang JS, Zhang Y, Wei DD, Wang XB, Luo J, Kong LY. Novel Tirucallane-Type Triterpenoids from Aphanamixis grandifolia. Chem Biodivers 2011; 8:2025-34. [DOI: 10.1002/cbdv.201000250] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Xie CF, Zhu RX, Qu JB, Wang LN, Guo DX, Yu WT, Liu CB, Lou HX. Stereochemical Investigation of Macrocyclic Bisbibenzyls with a Stereogenic Center at One of the Ethylene Bridges. Helv Chim Acta 2011. [DOI: 10.1002/hlca.201100172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Sun CC, Zhang YS, Xue X, Cheng YN, Liu HP, Zhao CR, Lou HX, Qu XJ. Inhibition of angiogenesis involves in anticancer activity of riccardin D, a macrocyclic bisbibenzyl, in human lung carcinoma. Eur J Pharmacol 2011; 667:136-43. [DOI: 10.1016/j.ejphar.2011.06.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Revised: 05/11/2011] [Accepted: 06/06/2011] [Indexed: 01/07/2023]
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31
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Kostiuk SL, Woodcock T, Dudin LF, Howes PD, Harrowven DC. Unified Syntheses of Cavicularin and Riccardin C: Addressing the Synthesis of an Arene Adopting a Boat Configuration. Chemistry 2011; 17:10906-15. [DOI: 10.1002/chem.201101550] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Huang CH, Pan JH, Chen B, Yu M, Huang HB, Zhu X, Lu YJ, She ZG, Lin YC. Three bianthraquinone derivatives from the mangrove endophytic fungus Alternaria sp. ZJ9-6B from the South China Sea. Mar Drugs 2011; 9:832-843. [PMID: 21673892 PMCID: PMC3111185 DOI: 10.3390/md9050832] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 04/20/2011] [Accepted: 05/04/2011] [Indexed: 02/03/2023] Open
Abstract
Three new bianthraquinone derivatives, alterporriol K (1), L (2) and M (3), along with six known compounds were obtained from extracts of the endophytic fungus Alternaria sp. ZJ9-6B, isolated from the mangrove Aegiceras corniculatum collected in the South China Sea. Their structures were elucidated by one- and two-dimensional NMR spectroscopy, MS data analysis and circular dichroism measurements. Compounds 1, 2 and 3 were first isolated alterporriols with a C-2–C-2′ linkage. The crystallographic data of tetrahydroaltersolanol B (7) was reported for the first time. In the primary bioassays, alterporriol K and L exhibited moderate cytotoxic activity towards MDA-MB-435 and MCF-7 cells with IC50 values ranging from 13.1 to 29.1 μM.
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Affiliation(s)
- Cai-Huan Huang
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
- School of Science and Engineering, Jinan University, Guangzhou 510632, China; E-Mail:
| | - Jia-Hui Pan
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
| | - Bin Chen
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
| | - Miao Yu
- School of Science and Engineering, Jinan University, Guangzhou 510632, China; E-Mail:
| | - Hong-Bo Huang
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
| | - Xun Zhu
- Guangdong Province Key Laboratory of Functional Molecules in Oceanic Microorganism (Sun Yat-sen University), Bureau of Education of Guangdong, Guangzhou 510080, China; E-Mail:
| | - Yong-Jun Lu
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; E-Mail:
| | - Zhi-Gang She
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
- Guangdong Province Key Laboratory of Functional Molecules in Oceanic Microorganism (Sun Yat-sen University), Bureau of Education of Guangdong, Guangzhou 510080, China; E-Mail:
| | - Yong-Cheng Lin
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China; E-Mails: (C.-H.H.); (J.-H.P.); (B.C.); (H.-B.H.); (Z.-G.S.)
- Guangdong Province Key Laboratory of Functional Molecules in Oceanic Microorganism (Sun Yat-sen University), Bureau of Education of Guangdong, Guangzhou 510080, China; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel./Fax: +86-20-8403-9623
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Wu CS, Lin ZM, Wang LN, Guo DX, Wang SQ, Liu YQ, Yuan HQ, Lou HX. Phenolic compounds with NF-κB inhibitory effects from the fungus Phellinus baumii. Bioorg Med Chem Lett 2011; 21:3261-7. [PMID: 21531558 DOI: 10.1016/j.bmcl.2011.04.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 03/18/2011] [Accepted: 04/08/2011] [Indexed: 10/18/2022]
Abstract
Chemical investigation of the fungus Phellinus baumii has resulted in characterization of five previously undescribed hispidin derivatives, phellibaumins A-E (1-5), as well as two pairs of new non-equivalent epimeric benzyl dihydroflavones, methylphelligrin A (9), epi-methylphelligrin A (10), methylphelligrin B (11), and epi-methylphelligrin B (12), together with five known compounds, interfungin B (6), phelligridin H (7), phelligridimer A (8), phelligrin A (13), and epi-phelligrin A (14). Phellibaumin A (1) was a novel hispidin derivative with a unique 3,4-dihydroxybenzofuran unit. These compounds exhibited NF-κB inhibitory activity with IC(50) values of 52.96 μM (1), 41.40 μM (2), 52.92 μM (5), 36.44 μM (9 and 10), and 22.46 μM (11 and 12), respectively.
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Affiliation(s)
- Chang-Sheng Wu
- Department of Natural Products Chemistry, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, People's Republic of China
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34
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Luo J, Wang JS, Luo JG, Wang XB, Kong LY. Velutabularins A–J, phragmalin-type limonoids with novel cyclic moiety from Chukrasia tabularis var. velutina. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.02.049] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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35
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Wang LN, Xie CF, Zhu XS, Fan PH, Lou HX. Determination of atropisomeric configurations of macrocyclic bisbibenzyls by HPLC-CD/UV and quantum chemical calculations. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2011; 13:312-318. [PMID: 21462034 DOI: 10.1080/10286020.2011.555333] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Isoriccardin C (1) and riccardin D (2), isolated from the liverwort Reboulia hemisphaerica, were first characterized to be a mixture of two enantiomeric atropisomers by online chiral high-performance liquid chromatography-circular dichroism (HPLC-CD) analysis. Exemplarily for bisbibenzyls of the diarylether-biphenyl type, the absolute atropisomeric configurations of compunds 1 and 2 were determined by the analysis of their CD data coupled with quantum chemical CD calculations.
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Affiliation(s)
- Li-Ning Wang
- School of Pharmaceutical Sciences, Shandong University, Jinan, China
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36
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Iwaniuk DP, Wolf C. A Stereodynamic Probe Providing a Chiroptical Response to Substrate-Controlled Induction of an Axially Chiral Arylacetylene Framework. J Am Chem Soc 2011; 133:2414-7. [DOI: 10.1021/ja111583e] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Daniel P. Iwaniuk
- Department of Chemistry, Georgetown University, Washington, D.C. 20057, United States
| | - Christian Wolf
- Department of Chemistry, Georgetown University, Washington, D.C. 20057, United States
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37
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Lv XQ, Luo JG, Wang XB, Wang JS, Luo J, Kong LY. Four New Sesquiterpenoids from the Fruits of Alpinia oxyphylla. Chem Pharm Bull (Tokyo) 2011; 59:402-6. [DOI: 10.1248/cpb.59.402] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Xiao-Qing Lv
- Department of Natural Medicinal Chemistry, China Pharmaceutical University
| | - Jian-Guang Luo
- Department of Natural Medicinal Chemistry, China Pharmaceutical University
| | - Xiao-Bing Wang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University
| | - Jun-Song Wang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University
| | - Jun Luo
- Department of Natural Medicinal Chemistry, China Pharmaceutical University
| | - Ling-Yi Kong
- Department of Natural Medicinal Chemistry, China Pharmaceutical University
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38
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Speicher A, Groh M, Hennrich M, Huynh AM. Syntheses of Macrocyclic Bis(bibenzyl) Compounds Derived from Perrottetin E. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001023] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Bringmann G, Gulder T, Gulder TAM, Breuning M. Atroposelective Total Synthesis of Axially Chiral Biaryl Natural Products. Chem Rev 2010; 111:563-639. [DOI: 10.1021/cr100155e] [Citation(s) in RCA: 909] [Impact Index Per Article: 64.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Tanja Gulder
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Tobias A. M. Gulder
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Matthias Breuning
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
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40
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Xie CF, Qu JB, Wu XZ, Liu N, Ji M, Lou HX. Antifungal macrocyclic bis(bibenzyls) from the Chinese liverwort Ptagiochasm intermedlum L. Nat Prod Res 2010; 24:515-20. [DOI: 10.1080/14786410802271587] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Chun-Feng Xie
- a School of Pharmaceutical Sciences, Shandong University , Jinan , PR China
| | - Jian-Bo Qu
- a School of Pharmaceutical Sciences, Shandong University , Jinan , PR China
| | - Xiu-Zhen Wu
- a School of Pharmaceutical Sciences, Shandong University , Jinan , PR China
| | - Na Liu
- a School of Pharmaceutical Sciences, Shandong University , Jinan , PR China
| | - Mei Ji
- a School of Pharmaceutical Sciences, Shandong University , Jinan , PR China
| | - Hong-Xiang Lou
- a School of Pharmaceutical Sciences, Shandong University , Jinan , PR China
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Speicher A, Backes T, Hesidens K, Kolz J. Ring strain and total syntheses of modified macrocycles of the isoplagiochin type. Beilstein J Org Chem 2009; 5:71. [PMID: 20300508 PMCID: PMC2839535 DOI: 10.3762/bjoc.5.71] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Accepted: 11/19/2009] [Indexed: 11/23/2022] Open
Abstract
Macrocycles of the bisbibenzyl-type are natural products that are found exclusively in bryophytes (liverworts). The molecular framework of the subtype "isoplagiochin" is of substantial structural interest because of the chirality of the entire molecule, which arises from two biaryl axes in combination with two helical two-carbon units in a cyclic arrangement. From a structural as well as a synthetic point of view we report on the total synthesis of compounds which possess more rigid two-carbon biaryl bridges like stilbene (E or Z) or even tolane moieties which were introduced starting with a Sonogashira protocol. The McMurry method proved to be a powerful tool for the cyclization to these considerably ring-strained macrocycles.
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Affiliation(s)
- Andreas Speicher
- Department 8.1 Chemistry - Organic Chemistry, Saarland University, 66041 Saarbrücken, Germany.
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42
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Bringmann G, Maksimenka K, Bruhn T, Reichert M, Harada T, Kuroda R. Quantum chemical CD calculations of dioncophylline A in the solid state. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.05.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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43
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Bringmann G, Bruhn T, Maksimenka K, Hemberger Y. The Assignment of Absolute Stereostructures through Quantum Chemical Circular Dichroism Calculations. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801121] [Citation(s) in RCA: 282] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐888‐4755
| | - Torsten Bruhn
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐888‐4755
| | - Katja Maksimenka
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐888‐4755
| | - Yasmin Hemberger
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany, Fax: +49‐931‐888‐4755
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Yang J, Huang SX, Zhao QS. Structure Revision of Hassananes with Use of Quantum Mechanical 13C NMR Chemical Shifts and UV−Vis Absorption Spectra. J Phys Chem A 2008; 112:12132-9. [PMID: 18983131 DOI: 10.1021/jp8072415] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jing Yang
- School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai, 200240, China, and State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, Yunnan, China
| | - Sheng-Xiong Huang
- School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai, 200240, China, and State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, Yunnan, China
| | - Qin-Shi Zhao
- School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai, 200240, China, and State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, Yunnan, China
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45
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Zhang Y, Ge H, Zhao W, Dong H, Xu Q, Li S, Li J, Zhang J, Song Y, Tan R. Unprecedented Immunosuppressive Polyketides fromDaldinia eschscholzii, a Mantis‐Associated Fungus. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200801284] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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Zhang YL, Ge HM, Zhao W, Dong H, Xu Q, Li SH, Li J, Zhang J, Song YC, Tan RX. Unprecedented Immunosuppressive Polyketides fromDaldinia eschscholzii, a Mantis‐Associated Fungus. Angew Chem Int Ed Engl 2008; 47:5823-6. [PMID: 18576440 DOI: 10.1002/anie.200801284] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ying Lao Zhang
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210093, China
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Bringmann G, Gulder TA, Reichert M, Gulder T. The online assignment of the absolute configuration of natural products: HPLC-CD in combination with quantum chemical CD calculations. Chirality 2008; 20:628-42. [DOI: 10.1002/chir.20557] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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48
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49
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Xiao K, Zhang HJ, Xuan LJ, Zhang J, Xu YM, Bai DL. Stilbenoids: Chemistry and bioactivities. BIOACTIVE NATURAL PRODUCTS (PART N) 2008. [DOI: 10.1016/s1572-5995(08)80032-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ishida K, Maksimenka K, Fritzsche K, Scherlach K, Bringmann G, Hertweck C. The boat-shaped polyketide resistoflavin results from re-facial central hydroxylation of the discoid metabolite resistomycin. J Am Chem Soc 2007; 128:14619-24. [PMID: 17090047 DOI: 10.1021/ja064550u] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Resistoflavin (1) is a rare boat-shaped pentacyclic polyketide metabolite of Streptomyces resistomycificus with marked antibacterial activity. By a series of experiments we have disclosed that the optically active molecule is derived from the discoid polyketide resistomycin (2) by an unusual, enantioface-differentiating hydroxylation, which leads to the capped pentacyclic ring system. In vivo and in vitro experiments unequivocally demonstrate that this reaction is catalyzed by RemO, an FAD-dependent monooxygenase. In addition, we were able to establish the absolute configuration of 1 and thus the stereochemical course of this rare enzymatic reaction by extensive computational methods. Comparison of the experimental CD spectrum with those quantum chemically calculated for (R)-1 and (S)-1 revealed the R-configuration of 1. Consequently, the enzyme-catalyzed hydroxylation takes place from the Re-face of 2 with loss of aromaticity in favor of a chiral carbinol center. While other oxygenases involved in polyketide tailoring functionalize the periphery of polyphenols, RemO is unique in its ability to catalyze a central, nonperipheral hydroxylation of a fused ring system.
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Affiliation(s)
- Keishi Ishida
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstrasse 11a, D-07745 Jena, Germany
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