Antimicrobial lanostane triterpenoids from the fruiting bodies of .

A chemical investigation on the 90% EtOH extract of the fruiting bodies of led to the isolation of three new lanostane triterpenoids, designated as 25-methoxy-11-oxo-ganoderiol D (), 3-oxo-25-methoxy-24,26-dihydroxy-lanosta-7,9(11)-diene (), and 3-acetyloxy-lucidone H (). Structural elucidation of all the compounds were performed by spectral methods such as 1 D and 2 D (HH COSY, HMQC, and HMBC) NMR spectroscopy. All the triterpenoids were evaluated for their antimicrobial activities against six pathogenic microorganisms.