Ganoellipsic acids A–C, lanostane triterpenoids from artificially cultivated fruiting bodies of Ganoderma ellipsoideum

Abstract

Three undescribed lanostane triterpenoids, ganoellipsic acids A–C ( 1–3 ), together with seven known Ganoderma lanostanoids ( 4 – 10 ), were isolated from artificially cultivated fruiting bodies of Ganoderma ellipsoideum , strain BCC 16634. The structures were elucidated on the basis of NMR spectroscopic and mass spectrometry data. The C-25 absolute configuration of 1 was determined to be 25 S using the phenylglycine methyl ester (PGME) method. • Three undescribed lanostanes were isolated from Ganoderma ellipsoideum . • The structures were elucidated by spectroscopic methods. • The 25 S configuration of applanoxidic acid derivatives was determined.