牛筋条的新化合物

Two New Compounds from Dichotomanthes tristaniaecarpa

从牛筋条 (Dichotomanthestristaniaecarpa)地上部分分离得到 8个化合物 ,经1HNMR ,13CNMR ,MS等波谱分析 ,它们被分别鉴定为羽扇豆醇 (1) ,白桦脂醇 (2 ) ,5 ,7-二羟基色酮 (3) ,( ) 表儿茶素 (4 ) ,圣草酚 3′ O β D 葡萄糖苷 (5 ) ,圣草酚 7 O β D (6′ 乙酯基 ) 吡喃葡萄糖醛酸苷 (6) ,圣草酚 7 O β D (6′ 甲酯基 ) 吡喃葡萄糖醛酸苷 (7) ,野蔷薇苷 (8)。其中化合物 6,7为新化合物。

Eight compounds were isolated from Dichotomanthes tristaniaecarpa. Their structures were determined on the basis of chemical and spectral evidences as lupeol (1), betulin (2),5,7-dihydroxychromone (3), (-)-epicatechin (4), eriodictyol 3′-O-β-D-glucopyran-oside (5), eriodictyol 7-O-β-D-(6′-ethyl ester)-glucuronopyranoside (6), eriodictyol 7-O-β-D-(6′-methyl ester)-glucuronopyranoside (7), rosamultin (8),respectively. Among them, 6 and 7 were new compounds.