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Menelle P, Quintin J, Cottet K, Fromentin Y, Dupont J, Lallemand MC, Buisson D. Biotransformation of guttiferones, Symphonia globulifera metabolites, by Bipolaris cactivora, an endophytic fungus isolated from its leaves. Org Biomol Chem 2021; 19:1378-1385. [PMID: 33480950 DOI: 10.1039/d0ob02443k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The search for active microorganisms for the biotransformation of guttiferone A (1) and C (6) has been successfully undertaken from a collection of endophytic fungi of Symphonia globulifera. Of the twenty-five isolates obtained from the leaves, three are active and have been identified as Bipolaris cactivora. The products obtained are the result of xanthone cyclisation with the formation of two regioisomers among four possible and corresponding to 1,16-oxy-guttiferone and 3,16-oxy-guttiferone. The biotransformation conditions were studied. Interestingly, both oxy-guttiferones A are present in the plant, and the ratio of 3,16-oxy-guttiferone to 1,16-oxy-guttiferone is 4 : 1, very close to that observed by biotransformation (3.8 : 1). These results are consistent with the involvement of endophytes in their formation pathway from guttiferone A, in planta. Finally, biotransformation made it possible to obtain and describe for the first time oxy-guttiferones C.
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Affiliation(s)
- Pauline Menelle
- Unité PNAS UMR/CNRS CiTCoM N°8038, Faculté de Pharmacie de Paris, Université de Paris, 4 avenue de l'observatoire, 75006 Paris, France and Unité Molécules de Communication et Adaptation des Microorganismes (MCAM), Muséum national d'Histoire naturelle, CNRS, CP54, 57 rue Cuvier, 75005 Paris, France.
| | - Jérôme Quintin
- Unité PNAS UMR/CNRS CiTCoM N°8038, Faculté de Pharmacie de Paris, Université de Paris, 4 avenue de l'observatoire, 75006 Paris, France and Unité Molécules de Communication et Adaptation des Microorganismes (MCAM), Muséum national d'Histoire naturelle, CNRS, CP54, 57 rue Cuvier, 75005 Paris, France. and Centre d'Etudes et de Recherche sur le Médicament de Normandie, Normandie Université, UNICAEN, CERMN, 14000 Caen, France
| | - Kevin Cottet
- Unité PNAS UMR/CNRS CiTCoM N°8038, Faculté de Pharmacie de Paris, Université de Paris, 4 avenue de l'observatoire, 75006 Paris, France and Unité Molécules de Communication et Adaptation des Microorganismes (MCAM), Muséum national d'Histoire naturelle, CNRS, CP54, 57 rue Cuvier, 75005 Paris, France.
| | - Yann Fromentin
- Unité PNAS UMR/CNRS CiTCoM N°8038, Faculté de Pharmacie de Paris, Université de Paris, 4 avenue de l'observatoire, 75006 Paris, France and Unité Molécules de Communication et Adaptation des Microorganismes (MCAM), Muséum national d'Histoire naturelle, CNRS, CP54, 57 rue Cuvier, 75005 Paris, France.
| | - Joëlle Dupont
- Institut Systématique Evolution Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE, 57 rue Cuvier, CP39, 75005 Paris, France
| | - Marie-Christine Lallemand
- Unité PNAS UMR/CNRS CiTCoM N°8038, Faculté de Pharmacie de Paris, Université de Paris, 4 avenue de l'observatoire, 75006 Paris, France
| | - Didier Buisson
- Unité Molécules de Communication et Adaptation des Microorganismes (MCAM), Muséum national d'Histoire naturelle, CNRS, CP54, 57 rue Cuvier, 75005 Paris, France.
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Wang L, Sun L, Wang X, Wu R, Zhou H, Zheng C, Xu H. Me 2AlSEt-Promoted Domino Dieckmann Cyclization Enables the Total Synthesis of Polycyclic Polyprenylated Acylphloroglucinols. Org Lett 2019; 21:8075-8079. [PMID: 31550167 DOI: 10.1021/acs.orglett.9b03078] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A bioinspired, Me2AlSEt-promoted domino Dieckmann cyclization via an 8-membered ring intermediate to construct bicyclo[3.3.1]nonanes was developed, and the divergent syntheses of nine complex polycyclic polyprenylated acylphloroglucinols were achieved. This novel domino cyclization tolerates a series of congested substrates, providing a very efficient way to construct diverse polycyclic structures. The selectivity and the advantages of the domino cyclization were studied. Moreover, the structure-activity relationship study leads to the identification of three simplified potent antitumor agents.
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Affiliation(s)
- Liping Wang
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Lian Sun
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Xueying Wang
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China.,Key Laboratory of Synthetic Chemistry of Natural Substances , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
| | - Rong Wu
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Hua Zhou
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Changwu Zheng
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China.,Key Laboratory of Synthetic Chemistry of Natural Substances , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
| | - Hongxi Xu
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China.,Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
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