Chemical Constituents of Inonotus obliquus (Pers.: Fr.) Pil. (Aphyllophoromycetideae) III: A New Triterpene, 3β,22,25-Trihydroxy-Lanosta-8-ene from Sclerotia

A new lanostane type triterpene, 3β,22,25-trihydroxy-lanosta-8-ene, which is a derivative of inotodiol hydrated at C-25 of isopentenyl group was isolated from the sclerotia of white-rot fungus, Inonotus obliquus (Pers.: Fr.)Pil.