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化学学报
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化学学报 ›› 1998, Vol. 56 ›› Issue (5): 507-513. 上一篇    下一篇

研究论文

华萝摩的化学成分

胡英杰;沈小玲;沈月毛;木全章   

  1. 广州中医药大学;西南林学院;中国科学院昆明植物研究所
  • 发布日期:1998-05-15

Studies on the constituents of Metaplexis hemsleyana

HU YINGJIE;SHEN XIAOLING;SHEN YUEMAO;MU QUANZHANG   

  • Published:1998-05-15

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从萝摩科植物华萝摩(Metaplexis hemsleyana Oliv.)的根中分离到四个新甾体去氧糖甙, 分别命名为hemoside A(1), hemosideB(2), hemoside C(3)和hemoside D(4)。经光谱分析及化学反应鉴定其结构依次为: 12, 20-O-二苯甲酰肉珊瑚苷元3-O-β-D-磁麻吡喃糖苷; 12, 20-O-二苯甲酰肉珊瑚苷元3-O-β-D-黄夹吡喃糖基(1→4)-β-D-夹竹桃吡喃糖基(1→4)-β-D-磁麻吡喃糖苷; 12-O-乙酰-20-O-苯甲酰肉珊瑚苷元3-O-β-D-黄夹吡喃糖基(1→4)-β-D-夹竹桃吡喃糖基(1→4)-β-D-磁麻吡喃糖苷; 吉马苷元3-O-β-D-黄夹吡喃糖基(1→4)-β-D-夹竹桃吡喃糖基(1→4)-β-D-磁麻吡喃糖苷。

关键词: 化学成分, 甾族化合物, 糖苷, 吡喃 P, 华萝摩

Four new compounds named hemoside A, B, C and D were isolated from the roots of Metaplexis hemsleyana Oliv. (Asclepiadaceae). Their chemical structures were determined as 12, 20-dibenzoylsarcostin 3-O-β-D-cymaropyranoside (1), 12, 20-dibenzoylsarcostin 3-O-β-D-thevetopyranosyl (1→4)-β -D-oleandropyranosyl (1→4)-β-D-cymaropyranoside (2), 12-acetyl-20-benzoylsarcostin 3-O-β-D-thevetopyranosyl (1→4)-β-D-oleandropyranosyl (1→4)-β-D-cymaropyranoside (3) and gymnemarsgenin 3-O-β-D-thevetopyranosyl (1→4)-β -D-oleandropyranosyl (1→4)-β-D-cymaropyranoside (4) respectively by means of NMR and other spectral and chemical methods.

Key words: CHEMICAL COMPOSITION, STEROIDS, GLYCOSIDE, PYRANE P

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