Secopaxilline A, an indole-diterpenoid derivative from an aciduric Penicillium fungus, its identification and semisynthesis

Literature Information

Publication Date 2018-08-24
DOI 10.1039/C8QO00756J
Impact Factor 5.281
Authors

Yaqin Fan, Yi Wang, Arthit Chairoungdua, Pawinee Piyachaturawat


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Abstract

Secopaxilline A (1), a new meroditerpenoid derived from indole-diterpenoid by the oxidative cleavage of a carbon–nitrogen bond, was isolated from an aciduric fungus Penicillium camemberti OUCMDZ-1492. Its structure, including absolute configuration, was fully elucidated based on spectroscopic analysis and X-ray single crystal diffraction. Secopaxilline A is the first example of indole-diterpenoid derivatives possessing a carbon–nitrogen bond cleavage skeleton. It was synthesized from paxilline with a 45% overall yield. The one-pot synthesis of the biosynthetic precursor, deacetylsecopaxilline A (4), from paxilline was also developed.

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Organic Chemistry Frontiers

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