1
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Nielsen MR, Sørensen T, Pedersen TB, Westphal KR, Díaz Fernández De Quincoces L, Sondergaard TE, Wimmer R, Brown DW, Sørensen JL. Final piece to the Fusarium pigmentation puzzle - Unraveling of the phenalenone biosynthetic pathway responsible for perithecial pigmentation in the Fusarium solani species complex. Fungal Genet Biol 2024; 174:103912. [PMID: 39004163 DOI: 10.1016/j.fgb.2024.103912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/29/2024] [Accepted: 07/04/2024] [Indexed: 07/16/2024]
Abstract
The Fusarium solani species complex (FSSC) is comprised of important pathogens of plants and humans. A distinctive feature of FSSC species is perithecial pigmentation. While the dark perithecial pigments of other Fusarium species are derived from fusarubins synthesized by polyketide synthase 3 (PKS3), the perithecial pigments of FSSC are derived from an unknown metabolite synthesized by PKS35. Here, we confirm in FSSC species Fusarium vanettenii that PKS35 (fsnI) is required for perithecial pigment synthesis by deletion analysis and that fsnI is closely related to phnA from Penicillium herquei, as well as duxI from Talaromyces stipentatus, which produce prephenalenone as an early intermediate in herqueinone and duclauxin synthesis respectively. The production of prephenalenone by expression of fsnI in Saccharomyces cerevisiae indicates that it is also an early intermediate in perithecial pigment synthesis. We next identified a conserved cluster of 10 genes flanking fsnI in F. vanettenii that when expressed in F. graminearum led to the production of a novel corymbiferan lactone F as a likely end product of the phenalenone biosynthetic pathway in FSSC.
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Affiliation(s)
- Mikkel Rank Nielsen
- Department of Chemistry and Bioscience, Aalborg University, Niels Bohrs Vej 8A, 6700 Esbjerg, Denmark
| | - Trine Sørensen
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Tobias Bruun Pedersen
- Department of Chemistry and Bioscience, Aalborg University, Niels Bohrs Vej 8A, 6700 Esbjerg, Denmark
| | - Klaus Ringsborg Westphal
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | | | - Teis Esben Sondergaard
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Reinhard Wimmer
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Daren W Brown
- National Center for Agricultural Utilization Research, U.S. Department of Agriculture, 1815 N University St. Peoria IL 61604, United States of America
| | - Jens Laurids Sørensen
- Department of Chemistry and Bioscience, Aalborg University, Niels Bohrs Vej 8A, 6700 Esbjerg, Denmark.
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2
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Li D, Liao X, Xu S, Zhao B. Caulerspiros A and B, a new pair of α-tocopheroid isomers from the green alga Caulerpa racemosa var. turbinata. Nat Prod Res 2024; 38:1320-1325. [PMID: 36305793 DOI: 10.1080/14786419.2022.2140152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/27/2022] [Accepted: 10/15/2022] [Indexed: 10/31/2022]
Abstract
Caulerspiros A (1) and B (2), a new pair of α-tocopheroid isomers, with five known compounds (3-7) were isolated from the green alga Caulerpa racemosa var. turbinata. Their structures were elucidated by the method of comprehensive spectroscopy. The absolute configurations of 1 and 2 were established by the methods of ECD calculation and comparing with the previously reported literature. Compounds 1 and 2 represented the rare examples of α-tocopherol derivatives possessing a core unit of 1-oxaspiro[4.4]non 7-en-6-one. Additionally, the antibacterial activities of these seven compounds were also evaluated. However, none of them showed antibacterial activities with MIC values > 128 μg/ml.
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Affiliation(s)
- Daichun Li
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, P. R. China
| | - Xiaojian Liao
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, P. R. China
| | - Shihai Xu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, P. R. China
| | - Bingxin Zhao
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, P. R. China
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3
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Zou J, Qiu ZC, Yu QQ, Wu JM, Wang YH, Shi KD, Li YF, He RR, Qin L, Yao XS, Wang XL, Gao H. Discovery of a Potent Antiosteoporotic Drug Molecular Scaffold Derived from Angelica sinensis and Its Bioinspired Total Synthesis. ACS CENTRAL SCIENCE 2024; 10:628-636. [PMID: 38559293 PMCID: PMC10979506 DOI: 10.1021/acscentsci.3c01414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 04/04/2024]
Abstract
Angelica sinensis, commonly known as Dong Quai in Europe and America and as Dang-gui in China, is a medicinal plant widely utilized for the prevention and treatment of osteoporosis. In this study, we report the discovery of a new category of phthalide from Angelica sinensis, namely falcarinphthalides A and B (1 and 2), which contains two fragments, (3R,8S)-falcarindiol (3) and (Z)-ligustilide (4). Falcarinphthalides A and B (1 and 2) represent two unprecedented carbon skeletons of phthalide in natural products, and their antiosteoporotic activities were evaluated. The structures of 1 and 2, including their absolute configurations, were established using extensive analysis of NMR spectra, chemical derivatization, and ECD/VCD calculations. Based on LC-HR-ESI-MS analysis and DFT calculations, a production mechanism for 1 and 2 involving enzyme-catalyzed Diels-Alder/retro-Diels-Alder reactions was proposed. Falcarinphthalide A (1), the most promising lead compound, exhibits potent in vitro antiosteoporotic activity by inhibiting NF-κB and c-Fos signaling-mediated osteoclastogenesis. Moreover, the bioinspired gram-scale total synthesis of 1, guided by intensive DFT study, has paved the way for further biological investigation. The discovery and gram-scale total synthesis of falcarinphthalide A (1) provide a compelling lead compound and a novel molecular scaffold for treating osteoporosis and other metabolic bone diseases.
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Affiliation(s)
- Jian Zou
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Zuo-Cheng Qiu
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
- Translational
Medicine R&D Center, Institute of Biomedical and Health Engineering/Key
Laboratory of Biomedical Imaging Science and System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518057, People’s Republic of China
- College
of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Qiang-Qiang Yu
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Jia-Ming Wu
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Yong-Heng Wang
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Ke-Da Shi
- Translational
Medicine R&D Center, Institute of Biomedical and Health Engineering/Key
Laboratory of Biomedical Imaging Science and System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518057, People’s Republic of China
| | - Yi-Fang Li
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Rong-Rong He
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Ling Qin
- Translational
Medicine R&D Center, Institute of Biomedical and Health Engineering/Key
Laboratory of Biomedical Imaging Science and System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518057, People’s Republic of China
| | - Xin-Sheng Yao
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Xin-Luan Wang
- Translational
Medicine R&D Center, Institute of Biomedical and Health Engineering/Key
Laboratory of Biomedical Imaging Science and System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518057, People’s Republic of China
| | - Hao Gao
- Institute
of Traditional Chinese Medicine and Natural Products, College of Pharmacy/International
Cooperative Laboratory of Traditional Chinese Medicine Modernization
and Innovative Drug Development of Chinese Ministry of Education of
China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents
of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People’s Republic of China
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4
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Li DC, Liang HX, Liao XJ, Xing XW, Xu SH, Zhao BX. Two New Pairs of Enantiomeric Butenolides from the Marine Sponge Suberties sp. Chem Biodivers 2023; 20:e202300950. [PMID: 37477082 DOI: 10.1002/cbdv.202300950] [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: 06/29/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 07/22/2023]
Abstract
Two new pairs of enantiomeric butenolides, (+)- and (-)-suberiteslide A, (+)- and (-)-subertieslide B had been obtained from the marine sponge Suberties sp. The structures with absolute configurations of these compounds were unequivocally determined by spectroscopic analyses and ECD (Electronic Circular Dichroism) method. It was the first separation of butenolides from the marine sponges of genus Suberites. Additionally, the anti-inflammatory, antibacterial and cytotoxic activities of these compounds were evaluated. The result indicated that only (-)-subertieslide B showed weak anti-inflammatory activity with the IC50 value of 40.8 μM.
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Affiliation(s)
- Dai-Chun Li
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
| | - Hui-Xian Liang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
| | - Xiao-Jian Liao
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
| | - Xi-Wen Xing
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
| | - Shi-Hai Xu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
| | - Bing-Xin Zhao
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
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5
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Fu P, Zhang Y, Wang C, Si S, Liu X, Che Y. Altersteroids A-D, 9,11-Secosteroid-Derived γ-Lactones from an Alternaria sp. JOURNAL OF NATURAL PRODUCTS 2023; 86:604-611. [PMID: 36693727 DOI: 10.1021/acs.jnatprod.2c00975] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Altersteroids A-D (1-4), four new 9,11-secosteroid-derived γ-lactones, were isolated from cultures of the ascomycete fungus Alternaria sp. Their structures were elucidated primarily by NMR experiments. The absolute configuration of 1 was established by X-ray crystallographic analysis of its di-p-nitrobenzenesulfonate 1a using Cu Kα radiation, whereas those for 2-4 were assigned by quantum-chemical calculations. Compounds 1-4 incorporate a γ-lactone moiety fused to the steroid D ring at C-13/C-14. Compound 3 showed moderate cytotoxicity toward four tumor cell lines and induced an apoptotic process in A549 cells. Notably, compound 3 showed equipotent activity against the cisplatin-sensitive MB49 and -resistant MB49 CisR cells, with an IC50 value of 12.7 μM.
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Affiliation(s)
- Peinan Fu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Yang Zhang
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, People's Republic of China
| | - Chenyin Wang
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Shuyi Si
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Xingzhong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Yongsheng Che
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People's Republic of China
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6
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Tong J, Zhang Y, Xu Y, Han Y, Li C, Zhuang W, Che Y. Spirocitrinols A and B, citrinin derivatives with a spiro[chromane-2,3'-isochromane] skeleton from Penicillium citrinum. RSC Adv 2023; 13:6124-6129. [PMID: 36814878 PMCID: PMC9940459 DOI: 10.1039/d3ra00665d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
Spirocitrinols A (1) and B (2), two new citrinin-derived metabolites possessing a spiro[chromane-2,3'-isochromane] skeleton, were isolated from cultures of Penicillium citrinum. Their structures were elucidated primarily by NMR experiments. The absolute configurations of 1 and 2 were assigned by electronic circular dichroism calculations. Compound 2 is the first naturally occurring trimeric citrinin derivative with a spiro[chromane-2,3'-isochromane] core. Compound 1 showed modest cytotoxicity against A549 human tumor cells.
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Affiliation(s)
- Junjie Tong
- Tianjin University of Traditional Chinese Medicine Tianjin 300193 People's Republic of China
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 People's Republic of China
| | - Yang Zhang
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology Beijing 100850 People's Republic of China
| | - Yang Xu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 People's Republic of China
| | - Yangyang Han
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 People's Republic of China
| | - Chuan Li
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 People's Republic of China
| | - Wenying Zhuang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences Beijing 100101 People's Republic of China
| | - Yongsheng Che
- Tianjin University of Traditional Chinese Medicine Tianjin 300193 People's Republic of China
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100050 People's Republic of China
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7
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Yan H, Shao X, Xu X, Li Z, Yang WL. Ir-Catalyzed Asymmetric Cascade Allylation/Spiroketalization Reaction for Stereoselective Synthesis of Oxazoline-Spiroketals. Org Lett 2023; 25:325-330. [PMID: 36607168 DOI: 10.1021/acs.orglett.2c03885] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An asymmetric cascade allylation/spiroketalization reaction between 2-(1-hydroxyallyl)phenols and 5-methyleneoxazolines is accomplished by using a chiral Ir(I) catalyst derived from commercially available iridium precursor and the Carreira ligand. This protocol furnishes a class of structurally novel and unique oxazoline-spiroketals in up to 86% yield, >99% ee and >20:1 dr. Moreover, control experiments reveal that 4,4-disubstitution on 5-methyleneoxazolines is necessary to avoid the aromatization and for the spiroketalization to occur. On the basis of this, a plausible reaction mechanism is illustrated.
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Affiliation(s)
- Hui Yan
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xusheng Shao
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xiaoyong Xu
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Wu-Lin Yang
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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8
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Zhang Y, Fu P, Zhang Y, Xu Y, Zhang C, Liu X, Che Y. Cladoxanthones A and B, Xanthone-Derived Metabolites with a Spiro[cyclopentane-1,2'-[3,9a]ethanoxanthene]-2,4',9',11'-tetraone Skeleton from a Cladosporium sp. JOURNAL OF NATURAL PRODUCTS 2022; 85:2541-2546. [PMID: 36367222 DOI: 10.1021/acs.jnatprod.2c00353] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Cladoxanthones A (1) and B (2), two xanthone-derived metabolites featuring a new spiro[cyclopentane-1,2'-[3,9a]ethanoxanthene]-2,4',9',11'(4a'H)-tetraone skeleton, were isolated from cultures of the ascomycete fungus Cladosporium sp., together with the known mangrovamide J (3). Their structures were elucidated primarily by NMR experiments. The absolute configurations of 1 and 2 were assigned by X-ray crystallography using Cu Kα radiation. Compound 1 could be generated from the hypothetical precursors related to α-methylene ketone and dihydro-xanthone via a Diels-Alder reaction, while 2 could be an oxidative coupling product resulting from 1 and 3. Compounds 1 and 2 showed weakly cytotoxic effects.
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Affiliation(s)
- Yang Zhang
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, People's Republic of China
| | - Peinan Fu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Yiqing Zhang
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing 100850, People's Republic of China
| | - Yang Xu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Chunyan Zhang
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Xingzhong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - Yongsheng Che
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, People's Republic of China
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9
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Liang X, Huang ZH, Shen WB, Lu XH, Zhang XX, Ma X, Qi SH. Talaromyoxaones A and B: Unusual Oxaphenalenone Spirolactones as Phosphatase Inhibitors from the Marine-Derived Fungus Talaromyces purpureogenus SCSIO 41517. J Org Chem 2021; 86:12831-12839. [PMID: 34477382 DOI: 10.1021/acs.joc.1c01452] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
(+)- and (-)-talaromyoxaones A and B (1 and 2, respectively), two new oxaphenalenone derivatives with a hemiacetal frame and an unprecedented spirolactone frame of a 2'H,3H,4'H-spiro[isobenzofuran-1,3'-pyran]-3-one unit that show biosynthetic enantiodivergence, and two new oxaphenalenone analogues (±)-11-apopyrenulin (3) and (+)- or (-)-abeopyrenulin (4) were isolated from the marine-derived fungus Talaromyces purpureogenus SCSIO 41517. Their structures were elucidated by spectroscopic analysis, single-crystal X-ray diffraction, and quantum chemical calculations of ECD spectra. Compounds 1 and 2 showed selective inhibitory activity against phosphatases SHP1, SHP2, and MEG2 with IC50 values of 1.3-3.4 μM, and the potential modes of action for 1 were investigated by a preliminary molecular docking study.
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Affiliation(s)
- Xiao Liang
- CAS Key Laboratory of Tropical Marine Bioresources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Zhong-Hui Huang
- CAS Key Laboratory of Tropical Marine Bioresources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Wen-Bin Shen
- New Drug Research Development Co., Ltd, North China Pharmaceutical Group Corporation, Shijiazhuang 050015, China
| | - Xin-Hua Lu
- New Drug Research Development Co., Ltd, North China Pharmaceutical Group Corporation, Shijiazhuang 050015, China
| | - Xue-Xia Zhang
- New Drug Research Development Co., Ltd, North China Pharmaceutical Group Corporation, Shijiazhuang 050015, China
| | - Xuan Ma
- CAS Key Laboratory of Tropical Marine Bioresources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Shu-Hua Qi
- CAS Key Laboratory of Tropical Marine Bioresources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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10
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Lin X, Xu H, Liu L, Li H, Gao Z. Draft genome sequence of Neonectria sp. DH2 isolated from Meconopsis grandis Prain in Tibet. 3 Biotech 2020; 10:346. [PMID: 32728513 DOI: 10.1007/s13205-020-02345-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 07/17/2020] [Indexed: 11/26/2022] Open
Abstract
In the current study, we report the high-quality draft genome sequence of Neonectria sp. DH2, an endophytic fungus isolated from Meconopsis grandis Prain in Tibet. The whole genome is about 45.8 Mbp, with a GC content of 53%. A total of 14,163 genes are predicted to encode proteins, and 557 of them are considered as unique, as no matches are found in five gene databases. A neighbor-joining phylogenetic tree based on internal transcribed spacer (ITS) region sequences shows that Neonectria sp. DH2 was most closely related to Neonectria ramulariae. 47 biosynthetic gene clusters (BGC) were identified in Neonectria sp. DH2 genome, and only 5 BGCs shows significant similarities to previously reported BGCs. The presence of 42 unique BGCs in Neonectria sp. DH2 suggests that it has great potential to produce novel secondary metabolites.
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Affiliation(s)
- Xiaojing Lin
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510006 China
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
| | - Hui Xu
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
| | - Lan Liu
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510006 China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000 China
| | - Huixian Li
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510006 China
| | - Zhizeng Gao
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, 510006 China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000 China
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11
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Li DC, Yang Y, Zhang B, Liao XJ, Jiang ZH, Xu SH, Zhao BX. Three New Butenolides from the Green Alga Caulerpa racemosa var. turbinata. Chem Biodivers 2020; 17:e2000022. [PMID: 32166904 DOI: 10.1002/cbdv.202000022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/12/2020] [Indexed: 11/10/2022]
Abstract
Three new butenolides, caulerpalide A and a pair of enantiomers, (+)-caulerpalide B and (-)-caulerpalide B, together with seven known compounds, have been isolated from the green alga Caulerpa racemosa var. turbinata. All these structures were determined by spectroscopic techniques. The absolute configurations of caulerpalide A, (+)-caulerpalide B and (-)-caulerpalide B were elucidated by the method of ECD calculation. This is the first separation of butenolides from the algae of genus Caulerpa. Additionally, the antibacterial activities of the nine isolated compounds were also evaluated.
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Affiliation(s)
- Dai-Chun Li
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
| | - Yan Yang
- Department of Pharmacy, Guangzhou General Hospital of, Guangzhou Military Command, Guangzhou, 510010, P. R. China
| | - Bing Zhang
- Department of Pharmacy, Guangzhou General Hospital of, Guangzhou Military Command, Guangzhou, 510010, P. R. China
| | - Xiao-Jian Liao
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
| | - Zhi-Hui Jiang
- Department of Pharmacy, Guangzhou General Hospital of, Guangzhou Military Command, Guangzhou, 510010, P. R. China
| | - Shi-Hai Xu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
| | - Bing-Xin Zhao
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, P. R. China
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12
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Wang Y, Ren J, Li H, Pan Y, Liu X, Che Y, Liu G. The disruption of verM activates the production of gliocladiosin A and B in Clonostachys rogersoniana. Org Biomol Chem 2020; 17:6782-6785. [PMID: 31276151 DOI: 10.1039/c9ob01102a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gliocladiosin A (1) and B (2), two dipeptides conjugated with macrolides, were identified from a verM disruption mutant of the Cordycep-colonizing fungus Clonostachys rogersoniana. The structures and absolute configurations of 1 and 2 were determined on the basis of spectroscopic data analysis, including MS, NMR, CD and X-ray diffraction. A biogenetic pathway for 1 and 2 was proposed. These two compounds showed moderate antibacterial effects.
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Affiliation(s)
- Ying Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. and Beijing Shunxin Agriculture Co. Ltd, Niulanshan Distillery, Beijing, 101301, China
| | - Jinwei Ren
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Honghua Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. and University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuanyuan Pan
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Xingzhong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Yongsheng Che
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
| | - Gang Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. and University of Chinese Academy of Sciences, Beijing, 100049, China and The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100864, China
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13
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Zhao C, Liu G, Liu X, Zhang L, Li L, Liu L. Pycnidiophorones A–D, four new cytochalasans from the wetland derived fungus Pycnidiophora dispersa. RSC Adv 2020; 10:40384-40390. [PMID: 35520825 PMCID: PMC9057502 DOI: 10.1039/d0ra08072a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 10/29/2020] [Indexed: 11/29/2022] Open
Abstract
Pycnidiophorones A–D (1–4), four new cytochalasans with a rare 5/6/6/5/6 pentacyclic skeleton incorporating the unique 12-oxatricyclo[6.3.1.02,7]dodecane core, and six known depsidones (5–10) were isolated from cultures of the wetland-soil-derived fungus Pycnidiophora dispersa. Their chemical structures were unambiguously determined using NMR spectroscopic data. The absolute configurations of 1 and 3 were assigned by electronic circular dichroism (ECD) calculations. Compounds 1–10 showed moderate cytotoxicity against a panel of five human tumor cell lines. Four new 5/6/6/5/6 pentacyclic cytochalasan pycnidiophorones A–D (1–4) and six known depsidones were identified from the wetland-soil-derived fungus Pycnidiophora dispersa.![]()
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Affiliation(s)
- Chen Zhao
- Department of Pharmacy
- Xuanwu Hospital of Capital Medical University
- National Clinical Research Center for Geriatric Diseases
- Beijing Engineering Research Center for Nervous System Drugs
- Beijing Institute for Brain Disorders
| | - Gaoran Liu
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing 100101
- People's Republic of China
| | - Xingzhong Liu
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing 100101
- People's Republic of China
| | - Lan Zhang
- Department of Pharmacy
- Xuanwu Hospital of Capital Medical University
- National Clinical Research Center for Geriatric Diseases
- Beijing Engineering Research Center for Nervous System Drugs
- Beijing Institute for Brain Disorders
| | - Lin Li
- Department of Pharmacy
- Xuanwu Hospital of Capital Medical University
- National Clinical Research Center for Geriatric Diseases
- Beijing Engineering Research Center for Nervous System Drugs
- Beijing Institute for Brain Disorders
| | - Ling Liu
- State Key Laboratory of Mycology
- Institute of Microbiology
- Chinese Academy of Sciences
- Beijing 100101
- People's Republic of China
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14
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Purgett TJ, Dyer MW, Bickel B, McNeely J, Porco JA. Gold(I)-Mediated Cycloisomerization/Cycloaddition Enables Bioinspired Syntheses of Neonectrolides B-E and Analogues. J Am Chem Soc 2019; 141:15135-15144. [PMID: 31469554 DOI: 10.1021/jacs.9b06355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Development of a synthetic route to the oxaphenalenone (OP) natural products neonectrolides B-E is described. The synthesis relies on gold-catalyzed 6-endo-dig hydroarylation of an unusual enynol substrate as well as a one-pot Rieche formylation/cyclization/deprotection sequence to efficiently construct the tricyclic oxaphenalenone framework in the form of a masked ortho-quinone methide (o-QM). A tandem cycloisomerization/[4 + 2] cycloaddition strategy was employed to quickly construct molecules resembling the neonectrolides. The tricyclic OP natural product SF226 could be converted to corymbiferan lactone E and a related masked o-QM. Our study culminates with the application of the tandem reaction sequence to syntheses of neonectrolides B-E as well as previously unreported exo-diastereomers.
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Affiliation(s)
- Thomas J Purgett
- Department of Chemistry, Center for Molecular Discovery (BU-CMD) , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - Matthew W Dyer
- Department of Chemistry, Center for Molecular Discovery (BU-CMD) , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - Bryce Bickel
- Department of Chemistry, Center for Molecular Discovery (BU-CMD) , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - James McNeely
- Department of Chemistry, Center for Molecular Discovery (BU-CMD) , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - John A Porco
- Department of Chemistry, Center for Molecular Discovery (BU-CMD) , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
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15
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Zhang J, Li Y, Ren F, Zhang Y, Liu X, Liu L, Che Y. Phomanolides C-F from a Phoma sp.: Meroterpenoids Generated via Hetero-Diels-Alder Reactions. JOURNAL OF NATURAL PRODUCTS 2019; 82:1678-1685. [PMID: 31120749 DOI: 10.1021/acs.jnatprod.9b00281] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Phomanolides C-F (1-4), four new meroterpenoids, were isolated from a Phoma sp., together with the known phomanolides A (5) and B (6); their structures were elucidated primarily by NMR experiments. The absolute configurations of 1-3 were assigned by electronic circular dichroism calculations, and that of 4 was established by X-ray diffraction analysis using Cu Kα radiation. Compounds 1-3 incorporate an unprecedented trioxa[4.4.3]propellane subunit in their skeletons. Compounds 2 and 4 were weakly cytotoxic.
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Affiliation(s)
- Jinyu Zhang
- State Key Laboratory of Toxicology & Medical Countermeasures , Beijing Institute of Pharmacology & Toxicology , Beijing 100850 , People's Republic of China
| | - Yumei Li
- State Key Laboratory of Toxicology & Medical Countermeasures , Beijing Institute of Pharmacology & Toxicology , Beijing 100850 , People's Republic of China
- Nanjing University of Chinese Medicine , Nanjing 210023 , People's Republic of China
| | - Fengxia Ren
- State Key Laboratory of Toxicology & Medical Countermeasures , Beijing Institute of Pharmacology & Toxicology , Beijing 100850 , People's Republic of China
| | - Yang Zhang
- State Key Laboratory of Toxicology & Medical Countermeasures , Beijing Institute of Pharmacology & Toxicology , Beijing 100850 , People's Republic of China
| | - Xingzhong Liu
- State Key Laboratory of Mycology , Institute of Microbiology, Chinese Academy of Sciences , Beijing 100101 , People's Republic of China
| | - Ling Liu
- State Key Laboratory of Mycology , Institute of Microbiology, Chinese Academy of Sciences , Beijing 100101 , People's Republic of China
| | - Yongsheng Che
- State Key Laboratory of Toxicology & Medical Countermeasures , Beijing Institute of Pharmacology & Toxicology , Beijing 100850 , People's Republic of China
- Institute of Medicinal Biotechnology , Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100050 , People's Republic of China
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16
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Gillard RM, Brimble MA. Benzannulated spiroketal natural products: isolation, biological activity, biosynthesis, and total synthesis. Org Biomol Chem 2019; 17:8272-8307. [DOI: 10.1039/c9ob01598a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A review discussing the isolation, biological activity, biosynthesis, and total synthesis of naturally occurring benzannulated spiroketals.
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Affiliation(s)
- Rachel M. Gillard
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
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17
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Zou J, Chen GD, Zhao H, Wang XX, Zhang ZJ, Qu YB, He RR, So KF, Yao XS, Gao H. Triangeliphthalides A–D: bioactive phthalide trimers with new skeletons from Angelica sinensis and their production mechanism. Chem Commun (Camb) 2019; 55:6221-6224. [DOI: 10.1039/c9cc02681a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Four bioactive phthalide trimers with new skeletons were isolated from Angelica sinensis, and their production mechanism was proposed.
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18
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Suzuki T, Yoshida S, Koseki T, Aboshi T, Murayama T, Supratman U, Shiono Y. New Metabolites Produced by Cylindrocarpon
sp. SY-39 from a Driftwood. Chem Biodivers 2018; 15. [DOI: 10.1002/cbdv.201700493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 12/08/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Takuma Suzuki
- Department of Food, Life, and Environmental Science; Faculty of Agriculture; Yamagata University; Tsuruoka Yamagata 997-8555 Japan
| | - Seiya Yoshida
- Department of Food, Life, and Environmental Science; Faculty of Agriculture; Yamagata University; Tsuruoka Yamagata 997-8555 Japan
| | - Takuya Koseki
- Department of Food, Life, and Environmental Science; Faculty of Agriculture; Yamagata University; Tsuruoka Yamagata 997-8555 Japan
| | - Takako Aboshi
- Department of Food, Life, and Environmental Science; Faculty of Agriculture; Yamagata University; Tsuruoka Yamagata 997-8555 Japan
| | - Tetsuya Murayama
- Department of Food, Life, and Environmental Science; Faculty of Agriculture; Yamagata University; Tsuruoka Yamagata 997-8555 Japan
| | - Unang Supratman
- Department of Chemistry; Faculty of Mathematics and Natural Sciences; Universitas Padjadjaran; Jatinangor 45363 Sumedang Indonesia
| | - Yoshihito Shiono
- Department of Food, Life, and Environmental Science; Faculty of Agriculture; Yamagata University; Tsuruoka Yamagata 997-8555 Japan
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19
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Zou J, Chen GD, Zhao H, Huang Y, Luo X, Xu W, He RR, Hu D, Yao XS, Gao H. Triligustilides A and B: Two Pairs of Phthalide Trimers from Angelica sinensis with a Complex Polycyclic Skeleton and Their Activities. Org Lett 2018; 20:884-887. [DOI: 10.1021/acs.orglett.8b00017] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jian Zou
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Guo-Dong Chen
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Huan Zhao
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Ying Huang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Xiang Luo
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Wei Xu
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Rong-Rong He
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Dan Hu
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Xin-Sheng Yao
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
| | - Hao Gao
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and ‡College of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, People’s Republic of China
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20
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Zhang FM, Zhang SY, Tu YQ. Recent progress in the isolation, bioactivity, biosynthesis, and total synthesis of natural spiroketals. Nat Prod Rep 2018; 35:75-104. [DOI: 10.1039/c7np00043j] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The isolation, bioactivity, biosynthesis, and total synthesis of natural spiroketals from 2011 to July 2017 have been summarized in this review.
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Affiliation(s)
- Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Shu-Yu Zhang
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
- School of Chemistry and Chemical Engineering
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21
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Wu H, Liu T, Lian Y, Wang W. Two new eremophilenolides from the roots of Ligulariopsis shichuana and their anti-phytopathogenic fungal and antifeedant activities. Nat Prod Res 2017; 33:1442-1448. [DOI: 10.1080/14786419.2017.1419240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Haibo Wu
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P.R. China
- Beijing Engineering Research Center of Food Environment and Health, Minzu University of China, Beijing, P.R. China
| | - Tingting Liu
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P.R. China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yuxuan Lian
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P.R. China
| | - Wenshu Wang
- College of Life and Environmental Sciences, Minzu University of China, Beijing, P.R. China
- Beijing Engineering Research Center of Food Environment and Health, Minzu University of China, Beijing, P.R. China
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22
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Sun T, Zou J, Chen G, Hu D, Wu B, Liu X, Yao X, Gao H. A set of interesting sequoiatones stereoisomers from a wetland soil-derived fungus Talaromyces flavus. Acta Pharm Sin B 2017; 7:167-172. [PMID: 28303222 PMCID: PMC5343115 DOI: 10.1016/j.apsb.2016.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 06/22/2016] [Accepted: 06/27/2016] [Indexed: 11/18/2022] Open
Abstract
Four interesting sequoiatones stereoisomers (1–4) were isolated from a wetland soil-derived fungus Talaromyces flavus by chiral HPLC. On the basis of comprehensive NMR and mass analyses, their planar structures were elucidated as the same as that of sequoiatone B. Among them, 1 and 3 (or 2 and 4) were a pair of enantiomers, and 1 and 2 (or 3 and 4) were a pair of stereoisomers with epimerization at C-12, which indicated that sequoiatione-type metabolites exist as enantiomers rather than as optically pure compounds in some strains. With the quantum chemical ECD calculations, the absolute configurations of C-8 in 1–4 were determined, which is the first report to establish the absolute configuration of C-8 in sequoiatones. However, the absolute configurations of C-12 in sequoiatones are still unsolved.
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Affiliation(s)
- Tianyu Sun
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jian Zou
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Guodong Chen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Corresponding authors. Tel.:/fax: +86 20 85228369.Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan UniversityGuangzhou510632China.
| | - Dan Hu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Bin Wu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, China
| | - Xingzhong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, China
| | - Xinsheng Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Corresponding authors. Tel.:/fax: +86 20 85228369.Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan UniversityGuangzhou510632China.
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23
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Gao YM, Sun TY, Ma M, Chen GD, Zhou ZQ, Wang CX, Hu D, Chen LG, Yao XS, Gao H. Adeninealkylresorcinol, the first alkylresorcinol tethered with nucleobase from Lasiodiplodia sp. Fitoterapia 2016; 112:254-9. [DOI: 10.1016/j.fitote.2016.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 06/19/2016] [Accepted: 06/20/2016] [Indexed: 01/06/2023]
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24
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Li CW, Xia MW, Cui CB, Peng JX, Li DH. A novel oxaphenalenone, penicimutalidine: activated production of oxaphenalenones by the diethyl sulphate mutagenesis of marine-derived fungus Penicillium purpurogenum G59. RSC Adv 2016. [DOI: 10.1039/c6ra17087k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
One new (1) and three known oxaphenalenones (2–4) were obtained by activating silent pathways in a marine-derived fungus.
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Affiliation(s)
- Chang-Wei Li
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- China
| | - Ming-Wen Xia
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- China
| | - Cheng-Bin Cui
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- China
| | - Ji-Xing Peng
- Key Laboratory of Marine Drugs
- Chinese Ministry of Education
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
| | - De-Hai Li
- Key Laboratory of Marine Drugs
- Chinese Ministry of Education
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao 266003
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25
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Zang Y, Genta-Jouve G, Retailleau P, Escargueil A, Mann S, Nay B, Prado S. Talaroketals A and B, unusual bis(oxaphenalenone) spiro and fused ketals from the soil fungus Talaromyces stipitatus ATCC 10500. Org Biomol Chem 2016; 14:2691-7. [DOI: 10.1039/c5ob02657a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Talaroketals A and B, unusual bis(oxaphenalenone) spiro and fused ketals were isolated from the soil fungusTalaromyces stipitatusATCC 10500.
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Affiliation(s)
- Yi Zang
- Sorbonne Universités
- Muséum national d'Histoire naturelle
- CNRS
- Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM)
- UMR 7245 CNRS-MNHN
| | - Grégory Genta-Jouve
- Laboratoire de Pharmacognosie et de Chimie des Substances Naturelles
- UMR 8638 CNRS
- Faculté des Sciences Pharmaceutiques et Biologiques
- Paris Descartes University
- 75006 Paris
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles
- CNRS
- 91198 Gif sur Yvette
- France
| | - Alexandre Escargueil
- Laboratory of Cancer Biology and Therapeutics
- Centre de Recherche Saint-Antoine
- UMR_S 938 INSERM
- Université Pierre et Marie Curie
- 75571 Paris
| | - Stéphane Mann
- Sorbonne Universités
- Muséum national d'Histoire naturelle
- CNRS
- Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM)
- UMR 7245 CNRS-MNHN
| | - Bastien Nay
- Sorbonne Universités
- Muséum national d'Histoire naturelle
- CNRS
- Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM)
- UMR 7245 CNRS-MNHN
| | - Soizic Prado
- Sorbonne Universités
- Muséum national d'Histoire naturelle
- CNRS
- Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM)
- UMR 7245 CNRS-MNHN
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26
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Zhang J, Liu L, Wang B, Zhang Y, Wang L, Liu X, Che Y. Phomanolides A and B from the Fungus Phoma sp.: Meroterpenoids Derived from a Putative Tropolonic Sesquiterpene via Hetero-Diels-Alder Reactions. JOURNAL OF NATURAL PRODUCTS 2015; 78:3058-3066. [PMID: 26651221 DOI: 10.1021/acs.jnatprod.5b00969] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Phomanolides A (1) and B (2), unique meroterpenoids with new pentacyclic and tetracyclic skeletons, respectively, and phomanoxide (3), the double-epoxidation product of a putative biosynthetic precursor of 1 and 2, were isolated from the solid substrate fermentation cultures of the fungus Phoma sp., along with the known compound eupenifeldin (4). The structures of 1-3 were elucidated based on NMR spectroscopic data and electronic circular dichroism calculations and further secured by X-ray crystallography. Biogenetically, compounds 1 and 2 could be derived from a hypothetical monotropolonic sesquiterpene intermediate via hetero-Diels-Alder reactions. Compound 4 showed potent antiproliferative effects against three human glioma cell lines, with IC50 values of 0.08-0.13 μM.
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Affiliation(s)
- Jinyu Zhang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences , Beijing 100101, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Ling Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences , Beijing 100101, People's Republic of China
| | - Bo Wang
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology , Beijing 100850, People's Republic of China
| | - Yang Zhang
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology , Beijing 100850, People's Republic of China
| | - Lili Wang
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology , Beijing 100850, People's Republic of China
| | - Xingzhong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences , Beijing 100101, People's Republic of China
| | - Yongsheng Che
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology , Beijing 100850, People's Republic of China
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Wen H, Li Y, Liu X, Ye W, Yao X, Che Y. Fusagerins A-F, New Alkaloids from the Fungus Fusarium sp. NATURAL PRODUCTS AND BIOPROSPECTING 2015; 5:195-203. [PMID: 26329590 PMCID: PMC4567992 DOI: 10.1007/s13659-015-0067-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 08/10/2015] [Indexed: 05/14/2023]
Abstract
Fusagerins A-F (1-6), six new alkaloids including a unique one with the rare a-(N-formyl)carboxamide moiety (1), a hydantoin (imidazolidin-2,4-dione) derivative (2), and four fungerin analogues (3-6), were isolated from the crude extract of the fungus Fusarium sp., together with the known compound fungerin (7). Compound 2 was isolated as a racemate and further separated into two enantiomers on a chiral HPLC column. The structures of 1-6 were determined mainly by NMR experiments, and the absolute configuration of 1 and 2 was assigned by electronic circular dichroism (ECD) calculations. Compound 7 showed antibacterial activity against Staphylococcus aureus and Streptococcus pneumoniae, and weak cytotoxicity against the T24 cells.
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Affiliation(s)
- Hao Wen
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Yan Li
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing, 100850, People's Republic of China
| | - Xingzhong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Wencai Ye
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Xinsheng Yao
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, People's Republic of China.
| | - Yongsheng Che
- State Key Laboratory of Toxicology & Medical Countermeasures, Beijing Institute of Pharmacology & Toxicology, Beijing, 100850, People's Republic of China.
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Ren J, Niu S, Li L, Geng Z, Liu X, Che Y. Identification of Oxaphenalenone Ketals from the Ascomycete Fungus Neonectria sp. JOURNAL OF NATURAL PRODUCTS 2015; 78:1316-1321. [PMID: 25978132 DOI: 10.1021/acs.jnatprod.5b00159] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Neonectrolides B-E (4-7), four new oxaphenalenone ketals incorporating the new furo[2,3-b]isochromeno[3,4,5-def]chromen-11(6aH)-one skeleton, were isolated from the fermentation extract of the ascomycete fungus Neonectria sp. in an in-depth investigation guided by HPLC fingerprint and a cytotoxicity assay. The previously identified oxaphenalenone spiroketal neonectrolide A (1) and its putative biosynthetic precursors (2 and 3) were also reisolated in the current work. The structures of 4-7 were primarily elucidated by interpretation of NMR spectroscopic data, and the absolute configurations were deduced by electronic circular dichroism calculations. Compound 6 showed cytotoxic effects against four of the six human tumor cell lines tested. Biosynthetically, compounds 4-7 could be derived via the Diels-Alder reaction cascades starting from derivatives of the co-isolated metabolites 2 and 3.
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Affiliation(s)
- Jinwei Ren
- †State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | | | - Li Li
- §Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Zhufeng Geng
- ⊥Analytical and Testing Center, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Xingzhong Liu
- †State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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Wu B, Ohlendorf B, Oesker V, Wiese J, Malien S, Schmaljohann R, Imhoff JF. Acetylcholinesterase inhibitors from a marine fungus Talaromyces sp. strain LF458. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:110-9. [PMID: 25108548 DOI: 10.1007/s10126-014-9599-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 07/25/2014] [Indexed: 05/26/2023]
Abstract
Two new oxaphenalenone dimers, talaromycesone A (1) and talaromycesone B (2), and a new isopentenyl xanthenone, talaroxanthenone (3), together with six known diphenyl ether derivatives, e.g., Δ(1',3'),-1'-dehydroxypenicillide (4), 1',2'-dehydropenicillide (5), vermixocin A (6), vermixocin B (7), 3'-methoxy-1'2'-dehydropenicillide (8), and AS-186c (9), were isolated from the culture broth and mycelia of a marine fungus Talaromyces sp. strain LF458. Compound 2 represents the first example of 1-nor oxaphenalenone dimer carbon skeleton. All isolated compounds were subjected to bioactivity assays. Compounds 1, 2, and 9 exhibited potent antibacterial activities with IC50 3.70, 17.36, and 1.34 μM, respectively, against human pathogenic Staphylococcus strains. Compounds 1, 3, and 9 displayed potent acetylcholinesterase inhibitory activities with IC50 7.49, 1.61, and 2.60 μM, respectively. Interestingly, phosphodiesterase PDE-4B2 was inhibited by compounds 3 (IC50 7.25 μM) and 9 (IC50 2.63 μM).
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Affiliation(s)
- Bin Wu
- Wirkstoff-Zentrum am GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Kiel, 24105, Germany
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Carradori S, Petzer JP. Novel monoamine oxidase inhibitors: a patent review (2012 - 2014). Expert Opin Ther Pat 2014; 25:91-110. [PMID: 25399762 DOI: 10.1517/13543776.2014.982535] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Monoamine oxidase (MAO) inhibitors, despite the initial pharmacological interest, are used in clinic for their antidepressant effect and in the management of Parkinson symptoms, due to the established neuroprotective action. Efficacy and tolerability emerged from large-scale and randomized clinical trials. AREAS COVERED Thirty-six patents range from April 2012 to September 2014. The number of chemotypes with inhibitory effects on MAO is truly high (40 synthetic compounds, 22 natural products and 6 plant extracts reported and licensed), and the present review is comprehensive of all compounds, which have been patented for their relevance to clinical medicine in this period range (27 patents). Moreover, some of the collected patents deal with new formulations of compounds endowed with MAO inhibitory properties (two patents) and new therapeutic options/drug associations for already known MAO inhibitors (seven patents). EXPERT OPINION The patents reported in this review showed that the interest in this field is constant and mainly devoted to the study of selective MAO-B inhibitors, used as drugs for the treatment of neurological disorders. The development of novel human MAO inhibitors took advantage of the discovery of new therapeutic targets (cancer, hair loss, muscle dystrophies, cocaine addiction and inflammation), the recognized role of MAOs as molecular biomarkers and their activity in other tissues.
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Affiliation(s)
- Simone Carradori
- Sapienza University of Rome, Department of Drug Chemistry and Technologies , P.le A. Moro 5, 00185, Rome , Italy +39 06 49913149 ; +39 06 49913923 ;
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Su M, Chen S, Liu X, Pei Y. Trichocladinols I-K, Oxatricyclic and Oxabicyclic Polyketides from Trichocladium opacum. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Three new polyketides, trichocladinols I-K (1-3) with oxabicyclic (1 and 3) and oxatricyclic (2) skeletons, together with three known metabolites, massarilactone G (4), massarigenin D (5), and rosigenin (6), were isolated from the solid-substrate fermentation cultures of the ascomycete fungus Trichocladium opacum. The structures of the new compounds were elucidated primarily by analysis of NMR data. The absolute configurations of 1-3 were deduced from circular dichroism (CD) data. Compounds 1-3 were tested for cytotoxicity against five human carcinoma cell lines, HeLa, A549, MCF-7, HCT116, and T24. Compound 1 showed a weak cytotoxic effect against HeLa cells, but 2 and 3 were inactive.
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Affiliation(s)
- Manyun Su
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, PR China
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, PR China
| | - Shenxi Chen
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
- Beijing Institute of Pharmacology & Toxicology, Beijing 100850, PR China
| | - Xingzhong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Yuehu Pei
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, PR China
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Chen S, Ren F, Niu S, Liu X, Che Y. Dioxatricyclic and oxabicyclic polyketides from Trichocladium opacum. JOURNAL OF NATURAL PRODUCTS 2014; 77:9-14. [PMID: 24354429 DOI: 10.1021/np4004799] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Five new polyketides, trichocladinols D-H (1-5) with dioxatricyclic (1-3) and oxabicyclic (4 and 5) skeletons, and the known massarilactone C (6) were isolated from the solid-substrate fermentation cultures of the ascomycete fungus Trichocladium opacum. The structures of 1-5 were determined mainly by NMR experiments, and 1, 3, and 4 were confirmed by X-ray crystallography. The absolute configurations of 1 and 3 were assigned by X-ray crystallography using Cu Kα radiation, whereas that of C-5 in 2 and 4 was deduced via the circular dichroism (CD) data. Compounds 2-4 showed weak cytotoxicity against the human tumor cell lines A549, HCT116, and SW480.
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Affiliation(s)
- Shenxi Chen
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences , Beijing 100190, People's Republic of China
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Elsebai MF, Saleem M, Tejesvi MV, Kajula M, Mattila S, Mehiri M, Turpeinen A, Pirttilä AM. Fungal phenalenones: chemistry, biology, biosynthesis and phylogeny. Nat Prod Rep 2014; 31:628-45. [DOI: 10.1039/c3np70088g] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Basavaiah D, Reddy DM. The Baylis–Hillman acetates in organic synthesis: Unprecedented sodium nitrite induced intramolecular Friedel–Crafts cyclization of secondary nitro compounds. RSC Adv 2014. [DOI: 10.1039/c4ra03573a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Unprecedented sodium nitrite mediated intramolecular Friedel–Crafts cyclization of alkyl (E)-2-arylidene-4-nitroalkanoates and (E)-3-arylidene-5-nitroalkan-2-ones derived from Baylis–Hillman acetates has been described.
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Affiliation(s)
- Deevi Basavaiah
- School of Chemistry
- University of Hyderabad
- Hyderabad-500 046, India
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Wang QX, Qi QY, Wang K, Li L, Bao L, Han JJ, Liu MM, Zhang LX, Cai L, Liu HW. Coicenals A–D, Four New Diterpenoids with New Chemical Skeletons from the Plant Pathogenic Fungus Bipolaris coicis. Org Lett 2013; 15:3982-5. [DOI: 10.1021/ol401736z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Quan-xin Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
| | - Qiu-yue Qi
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
| | - Kai Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
| | - Li Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
| | - Li Bao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
| | - Jun-jie Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
| | - Miao-miao Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
| | - Li-xin Zhang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
| | - Lei Cai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
| | - Hong-wei Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No. 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, P. R. China, School of Life Science, University of Science and Technology of China, No. 96 Jinzhai-Road, Hefei 230026, P. R. China, and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, P. R. China
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