Three New Diterpenoids from Isodon Eriocalyx

作     者：Shao Nong CHEN Shao Yuan CHEN Jian Min YUE Zhong Wen LINGuo Wei QIN Han Dong SUN Yao Zu CHEN(Shanghai Institute of Materia Medica, Academia Sinica, Shanghai 200031)(The Laboratory of Phytochemistry, Kunming Institute of Botany, Academia Sinica, Kunmi 

作者机构：Acad Sinica Shanghai Inst Mat Med Shanghai 200031 Peoples R China Acad Sinica Kunming Inst Bot Lab Phytochem Kunming 650204 Peoples R China Zhejiang Univ Dept Chem Hangzhou 310027 Peoples R China Lanzhou Univ State Key Lab Appl Organ Chem Lanzhou 730000 Peoples R China 

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

年 卷 期：1998年第9卷第11期

页      面：0-0,0-0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] 070303[理学-有机化学] 0703[理学-化学] 

主　　题：Isodon eriocalyx Labiatae ent-kaurane diterpenoids eriocalyxins C-E 

摘      要：Three new diterpenoids, eriocalyxins C-E, were isolated from Isodon eriocalyx. Their structures were elucidated as 66-hydroxy- 15β-acetoxy-3α, 20-epoxy-16β, 17-epoxy-ent-kaur-1,7-dione, 1α, 7β-dihydroxy-6β, 15β-diacetoxy-7, 20-epoxy-ent-kaur-16-ene, and 15β-acetoxy-1, 6-dioxo-6, 7-seco-ent-kaur-2, 16-dien-7, 20-olide by means of spectroscopic methods, including two-dimensional NMR techniques.