Chemical structures of compounds isolated from mushroom Suillus granulatus

We have investigated the secondary metabolites from the mushroom Suillus granulatus. The methanolic extract of fruit body was separated by silica gel and Sephadex LH-20 column chromatographies. TLC and HPLC were also used for the further purification of compounds from the extracts. Nine compounds were finally isolated and their structures were assigned as 4-hydroxyphenylacetic acid, 4-hydroxybenzaldehyde, 2,5-dihydroxybenzoic acid methyl ester, 5′-deoxy-5′methylthioadenosine, indole-3-carboxlic acid methyl ester, indole-3-carboxaldehyde, 1,3,5-trihydroxy-7-methylanthraquinone, nicotinamide and 3-geranylgeranyl-4-hydroxybenzoic acid on the basis of NMR studies.