Two new diterpenoids from Isodon eriocalyx

作     者：Chen, NY Tian, MQ Wu, R Sun, HD Li, CM Lin, ZW 

作者机构：Lanzhou Univ Natl Lab Appl Organ Chem Lanzhou 730000 Peoples R China Acad Sinica Kunming Inst Bot Lab Phytochem Kunming 650204 Peoples R China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：1999年第10卷第1期

页      面：31-32页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

主　　题：Isodon eriocalyx ent-kaurenoids maoecrystal U epi-maoecrystal P 

摘      要：Two new diterpenoids, maoecrystal U and epi-maoecrystal P were isolated from the leaves of Isodon eriocalyx. Their structures were determined as 6 beta-acetoxy-15 beta-hydroxy-3 alpha, 20epoxy-ent-kaur-16-ene-1,7-dione 1 and 16 (s)-methoxymethyl-6 beta,7 beta-dihydroxy-7 alpha,20-epoxy-ent-kaur-2,3-ethenylene-1, 15-dione 2 respectively, by spectroscopic methods.