太白忍冬素C和D：来自日本香茶菜的两种新二萜类化合物。

Taibaijaponicains C and D: two new diterpenoids from Isodon japonica.

作者信息

Li Bao Lin

机构信息

School of Chemistry and Material Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China.

出版信息

Planta Med. 2002 May;68(5):477-9. doi: 10.1055/s-2002-32080.

DOI:10.1055/s-2002-32080

PMID:12058335

Abstract

Two new C-20-oxygenated ent-kaurene diterpenoids, taibaijaponicains C and D, together with five known compounds, were isolated from the ethanol extract of the leaves and branches of Isodon japonica (Burm. f.) Hara. The structures of new compounds were elucidated as 1 alpha-aectoxy-7 beta,12 beta,15 alpha-trihydroxy-16 alpha-hydroxymethyl-7,20-epoxy- ent-kaurane and 1 alpha-acetoxy-2 beta,3 alpha,6 beta,7 beta,12 beta-pentahydroxy-7,20;19,20-diepoxy- ent-kaur-16-en-15-one, respectively, on the basis of detailed spectroscopic analysis.

摘要

从糙苏（Isodon japonica (Burm. f.) Hara）叶和枝的乙醇提取物中分离得到两个新的C-20氧化对映贝壳杉烯二萜太白糙苏素C和D，以及五个已知化合物。通过详细的光谱分析，新化合物的结构分别被鉴定为1α-乙酰氧基-7β,12β,15α-三羟基-16α-羟甲基-7,20-环氧-对映贝壳杉烷和1α-乙酰氧基-2β,3α,6β,7β,12β-五羟基-7,20;19,20-二环氧-对映贝壳杉-16-烯-15-酮。