化学学报 ›› 1989, Vol. 47 ›› Issue (3): 258-261. 上一篇    下一篇

研究论文

土槿皮新二萜成分的研究 IV: 土槿丁酸和土槿戊酸的分离和结构测定

李珠莲;陈科;潘德济;徐光漪   

  1. 上海医科大学药学院;上海医药工业研究院分析室
  • 发布日期:1989-03-15

Studies on the novel diterpenoic constituents of TU-JIN-PI IV: Isolation and identification of pseudolaric acid D and pseudolaric acid E

LI ZHULIAN;CHEN KE;PAN DEJI;XU GUANGYI   

  • Published:1989-03-15

从土槿皮(Pseudolarix kaempferi, Gord.)中分离到两个新二萜酸, 命名为土槿丁酸(1)和土槿戊酸(2), 经理化性质和对它们的IR、^1H NMR、^1^3C NMR、MS数据的分析, 鉴定1为 18-羟-对映-贝壳杉-15-烯-17-羧酸; 2为对映-贝壳杉-15-烯-17, 18-二羧酸. 1的结构经X衍射得到了证实.

关键词: 化学成分, 羧酸, 红外分光光度法, 质谱法, 碳13核磁共振谱法, 戊酸 P, 质子磁共振谱法, 结构分析, 丁酸 P, 二萜

Two new diterpenoic acids (I and II) were isolated from Tu-Jin-Pi (the root bark of Pseudolarix kaemphferi). I was shown to be 18-hydroxy-ent-kaur-15-en-17-oic acid (pseudolaric acid D), and II ent-kaur-15-en-17,18-dioic acid (pseudolaric acid E).

Key words: CHEMICAL COMPOSITION, CARBOXYLIC ACID, INFRARED SPECTROPHOTOMETRY, MASS SPECTROGRAPHY, C13 NMR SPECTROMETRY, VALERIANIC ACID P, PROTON MAGNETIC RESONANCE SPECTROMETRY, STRUCTURAL ANALYSIS, BUTANOIC ACID P, DITERPENES

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