Journal : J. Nat. Prod.
Title : Naphthalenones from a Perenniporia sp. inhabiting the larva of a phytophagous weevil, Euops chinesis.
Year : 2012
Volume : 75
Issue : 7
First Page : 1339
Last Page : 1345
Authors : Feng Y, Wang L, Niu S, Li L, Si Y, Liu X, Che Y.
Abstract : The new naphthalenone derivatives perenniporides A-D (1-4) were isolated from solid cultures of a fungus Perenniporia sp. inhabiting the larva of Euops chinesis, a phytophagous weevil with high host specificity to the medicinal plant Fallopia japonica. The structures of 1-4 were elucidated primarily by NMR experiments, and 1 was confirmed by X-ray crystallography. The absolute configuration of 1 and 2 was assigned by electronic circular dichroism (ECD) calculations, whereas that of the C-10 tertiary alcohol in 3 was deduced via the CD data of the in situ formed [Rh(2)(OCOCF(3))(4)] complex and supported by the ECD data. Compound 1 showed antifungal activity against five plant pathogens.