Seven previously unknown sesquiterpenoids and norsesquiterpenoids, rhodocoranes F-L (-), were isolated from the fermentation broth of the basidiomycete . Their structures were elucidated utilizing 1D and 2D NMR techniques as well as HRESIMS; they are unusual noracorane, spiro[4.4]nonene, and acorane-type sesquiterpenoids.
View Article and Find Full Text PDFRhodatin (1), a meroterpenoid featuring a unique pentacyclic scaffold with both spiro and spiroketal centers, and five unusual acorane-type sesquiterpenoids, named rhodocoranes A-E (2-6, respectively), are the first natural products isolated from the basidiomycete Rhodotus palmatus. Their structures were elucidated by two-dimensional NMR experiments and HRESIMS, while the absolute configuration of the substance family was determined by Mosher's method utilizing 2. Rhodatin strongly inhibited hepatitis C virus, whereas 4 displayed cytotoxicity and selective antifungal activity.
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