Ansari S H, Ali M
Faculty of Pharmacy, Jamia Hamdard (Hamdard University) Hamdard Nagar, New Delhi, India.
Pharmazie. 2001 Feb;56(2):175-7.
A new norditerpenyl ester, named Calotropterpenyl ester, and two unknown pentacyclic triterpenoids, namely calotropursenyl acetate and calotropfriedelenyl acetate have been isolated from the root bark of Calotropis procera. Their structures have been established as 6,10,14-trimethylpentadec-6-enyl-2',4',8',12',16'-pentamethyl nonadecane ester, urs-12,19(29)-diene-3 beta-yl acetate and friedelin-1-ene-3 beta-yl acetate, respectively, on the basis of spectral data analyses and chemical reactions.
从牛角瓜的根皮中分离出一种新的降二萜酯，命名为牛角瓜萜酯，以及两种未知的五环三萜类化合物，即乙酸牛角瓜二烯醇酯和乙酸牛角瓜弗瑞德烯醇酯。基于光谱数据分析和化学反应，它们的结构分别被确定为6,10,14-三甲基十五-6-烯基-2',4',8',12',16'-五甲基十九烷酯、乌苏-12,19(29)-二烯-3β-基乙酸酯和弗瑞德林-1-烯-3β-基乙酸酯。
