Constituents of Antrodia Cinnamomea

Abstract

Abstract We describe identification of seven components from Antrodia cinnamomea. Their structures were determined on the basis of spectral analysis and comparison with authentic samples. These compounds include two steroids (1, 2) (β‐sitosterol and eburicol), two new steroids (3, 4) [methyl‐4α‐methylergost‐8,24(28)‐dien‐3,7,11‐trion‐26‐oate and methyl‐4α‐methylergost‐8,24(28)‐dien‐3,11‐dion‐26‐oate], two lignans (5, 6) [(+)‐sesamin and 4‐hydroxysesamin], and one long chain methyl ester (7) (methyl oleate). Among them, compounds 3 and 4 are first isolated from nature.