Studies on the constituents of Momordica cochinchinensis Spreng. II. Isolation and characterization of the root saponins, Momordins I, II and III.
作者:MASAYO IWAMOTO、HIKARU OKABE、TATSUO YAMAUCHI
DOI:10.1248/cpb.33.1
日期:——
From the root of Momordica cochinchinensis SPRENG. (Cucurbitaceae), three saponins named momordins I, II and III have been isolated. Their structures were determined on the basis of chemical and spectral evidence as oleanolic acid 3-O-α-L-arabinopyranosyl (1→3)-β-D-glucuronopyranoside (momordin I), 28-O-β-D-glucopyranoside of momordin I (momordin II) and 3β-hydroxy-11α, 12α-epoxy-olean-28, 13-olide 3-O-α-L-arabinopyranosyl (1→3)-β-D-glucuronopyranoside (momordin III). Momordin II was proved to be identical with hemsloside Ma1 isolated from the tubers of Hemsleya macrosperma and H. chinensis.
从木鳖子(Momordica cochinchinensis SPRENG. 葫芦科)的根中分离出三种皂苷,命名为木鳖子苷I、II和III。它们的结构通过化学和光谱证据确定为:木鳖子苷I(3-O-α-L-阿拉伯吡喃糖基(1→3)-β-D-葡萄糖醛酸苷基的齐墩果酸)、木鳖子苷II(木鳖子苷I的28-O-β-D-葡萄糖苷)和木鳖子苷III(3β-羟基-11α, 12α-环氧-齐墩果-28, 13-内酯的3-O-α-L-阿拉伯吡喃糖基(1→3)-β-D-葡萄糖醛酸苷)。木鳖子苷II被证实与从大苞赤瓟和中华赤瓟块根中分离出的hemsloside Ma1相同。