A New Ursene Type Triterpenoid from Crepis napifera  

作　　者：Wu, SH Luo, XD Ma, YB Wu, DG 

机构地区：[1]Chinese Acad Sci, Kunming Inst Bot, Lab Phytochem, Kunming 650204, Peoples R China

出　　处：《Chinese Chemical Letters》2000年第8期711-712,共2页中国化学快报（英文版）

摘　　要：A new triterpenoid, urs-20-en-3 beta-acetoxy-22 alpha-ol, and three known compounds 3 beta-acetoxy-amyrin, 3 beta-acetoxy-lupeol, lupeol were isolated from the leaves of Crepis napifera (Franch.) Babe. Their structures were determined by means of spectroscopic studies.A new triterpenoid, urs-20-en-3 beta-acetoxy-22 alpha-ol, and three known compounds 3 beta-acetoxy-amyrin, 3 beta-acetoxy-lupeol, lupeol were isolated from the leaves of Crepis napifera (Franch.) Babe. Their structures were determined by means of spectroscopic studies.

关 键 词：Crepis napifera (Franch.) Babc. COMPOSITAE TRITERPENOID urs-20-en-3 beta-acetoxy-22 alpha-ol 3 beta-acetoxy-amyrin 3 beta-acetoxy-lupeol LUPEOL 

分 类 号：O629[理学—有机化学]