Structure and absolute configuration of protoilludane sesquiterpenes from Russula delica

Three new protoilludane sesquiterpenes, plorantinone A, B and C ( 1, 2a and 3), were isolated from injured fruit bodies of the Basidiomycete Russula delica, presumably formed from stearoylplorantinone B ( 2b) which was isolated from intact fruit bodies. The isolation and structure elucidation includ...

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Bibliographic Details
Published in:Tetrahedron 1997-07, Vol.53 (28), p.9735-9740
Main Authors: Clericuzio, Marco, Jian Fu, Fusheng Pan, Zijie Pang, Sterner, Olov
Format: Article
Language:English
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Summary:Three new protoilludane sesquiterpenes, plorantinone A, B and C ( 1, 2a and 3), were isolated from injured fruit bodies of the Basidiomycete Russula delica, presumably formed from stearoylplorantinone B ( 2b) which was isolated from intact fruit bodies. The isolation and structure elucidation including the determination of the absolute configuration of the four compounds is reported. Stearoylplorantinone B ( 2, R=stearoyl), present in intact fruit bodies of R. delica, is converted to plorantinones A ( 1), B ( 2, R=H) and C ( 3) as a response to injury.
ISSN:0040-4020
1464-5416
DOI:10.1016/S0040-4020(97)00596-6