Synthesis 2023; 55(09): 1322-1327
DOI: 10.1055/s-0042-1751422
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Biogenesis-Inspired Synthesis of Penicillitone

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Financial support for this work was provided by the European Research Council (ERC Consolidator Grant ‘RadCrossSyn’, agreement no. 101043353), Deutsche Forschungsgemeinschaft (Heisenberg-Program HE 7133/8-1), and Boehringer Ingelheim Stiftung (plus3 perspectives program).


Abstract

The biogenesis-inspired synthesis of the structurally unique 15(14→11)abeo-steroid penicillitone starting from commercially available ergosterol is reported. Key to the strategy is an intramolecular vinylogous aldol reaction of a 14,15-secoergostane obtained from the previously reported 14,15-secosteroid platform. Since a similar intermediate has been employed to access the strophasterol class of natural products, this work points at a possible biosynthetic connection between penicillitone and the strophasterols.

Supporting Information



Publication History

Received: 04 January 2023

Accepted after revision: 19 January 2023

Article published online:
23 February 2023

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