从墨西哥落羽杉(Taxodiummucronatum)枝叶中首次分离得
β-sitosterol
到10个化合物,通过MS与NMR等方法将它们分别鉴定为quercetin3′-methoxy-3-O-β-D-galactopyranoside(1),quercetin3′-methoxy-3-O-β-D-arabinopyrano-side(2),quercetin3′-methoxy-3-O-α-L-arabinofuranoside(3),quercetin(4),avicularin(5),quercetin3-O-β-D-ga-lactopyranoside(6),7′S,8′R)-4,7′-epoxy-3,3′-dimethoxy-4,9,3′,4′,9′-lignanepentol-4′-O-β-D-glucopyranoside(7),(7′S,8′S)-3,3′-dimethoxy-9,4′,9′-trihydroxy-4,8′-oxyneolignan-7′-O-β-D-glucopyranside(8),methylshikimate(9)和β-sitosterol(10)。