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化学学报
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化学学报 ›› 1982, Vol. 40 ›› Issue (8): 757-761. 上一篇    下一篇

研究简报

土槿皮新二萜成分研究——Ⅱ.土槿丙2酸的结构证明和土槿甲酸、土槿乙酸、土槿丙酸和土槿丙2酸的结构沟通

李珠莲1, 潘德济1, 吴勤丽1, 徐光漪2   

  1. 1. 上海第一医学院药学系;
    2. 上海医药工业研究院
  • 投稿日期:1980-06-11 发布日期:2013-06-03
  • 通讯作者: 李珠莲

STUDIES ON THE NOVEL DITERPENIC CONSTITUENTS OF TU-JIN-PI Ⅱ. THE IDENTIFICATION OF PSEUDOLARIC ACID C2 AND THE STRUCTURAL CORRELATIONS OF PSEUDOLARIC ACID A, B, C AND C2

LI ZHU-LIAN1, PAN DE-JI1, WU QIN-LI1, XU GUANG-YI2   

  1. 1. Faculty of Pharmaceutical Sciences, Shanghai First Medical, College;
    2. Shanghai Institute of Pharmaceutical Industrial Research
  • Received:1980-06-11 Published:2013-06-03

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前报报道了土槿甲酸(1)和土槿乙酸(2)的化学结构.土槿皮中的另一成分土槿丙酸(3)已证明为去乙酰基土槿乙酸.我们将柱层析分去1,2后的洗脱流分,重复进行硅胶柱层析,除获得3外,还得到一个Rf值与3相近但具有双熔点的成分,定名土槿丙2酸,经鉴定为去甲基土槿乙酸(4).前报1和2的碳架系通过土槿甲酸结晶的X射线衍射分析确定.本文通过沟通1～4的结构关系,即由1经数步氧化反应,分别证明产物为2,3和去乙酰基去甲基土槿乙酸

Pseudolaric acid C(3) and pseudolario acid C2(4) have been isolated from the crude pseudolaric acid together with pseudolaric aoid A(1) and pseudolaric acid B(2).Pseudolaric acid C2 was proved to be demethylpseudolaric acid B.