(−)-Wistarin from the marine sponge Ircinia sp.: the first case of enantiomeric sesterterpenes
作者： Angelo Fontana , Issa Fakhr , Ernesto Mollo , Guido Cimino
DOI: 10.1016/S0957-4166(99)00406-1
关键词: Metabolite 、 Chemistry 、 Ircinia 、 Sponge 、 Biosynthesis 、 Stereochemistry 、 Sesterterpenes 、 Enantiomer
摘要: Abstract The sestertepene (−)-wistarin has been isolated from a Red Sea sponge of the genus Ircinia . This metabolite is enantiomer (+)-wistarin, tetracyclic previously wistarii enantiomeric relationship was proved by comparison CD spectrum with that synthetic sample (+)-isomer. A hypothetical biosynthesis discussed starting putative linear precursor.
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