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Updated: May 6, 2026
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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
Mono- and bis-furanone derivatives from the endolichenic fungus Peziza sp
Kun Zhang1, Jinwei Ren2, Mei Ge3
1State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China; Shanghai Normal University, Shanghai 200234, PR China.
Abstract:
Seven new mono- and bis-furanones, pezizolides A-G (1-7), have been isolated from the crude extract of the endolichenic fungus Peziza sp. inhabiting the lichen Xanthoparmelia sp. The structures of the new compounds were elucidated mainly by NMR and MS methods. The absolute configuration of 1-4 was assigned by the application of CD exciton chirality method, and 1 was further supported by electronic circular dichroism (ECD) calculations, whereas that of 5 was deduced by Snatzke's method following the relative configuration analysis of its acetonide. The cytotoxity and antimicrobial activity of compounds 1-7 were tested.
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