期刊
HELVETICA CHIMICA ACTA
卷 93, 期 12, 页码 2478-2487出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/hlca.201000126
关键词
-
资金
- CNPq
- FAPERJ
- FAPESP
In the first phytochemical study of the Aureliana genus (Solanaceae), two new withanolides, 1 and 2, together with two known sterols, were isolated from the MeOH extract of the leaves of Aureliana fasciculata var. fasciculata. The structures were established as (4S,22R)-16 alpha-acetoxy-5 beta,6 beta-epoxy-4 beta,17 alpha-dihydroxy-1-oxowitha-2,24-dienolide (aurelianolide A) and (4S,22R)-16 alpha-acetoxy-4 beta,17 alpha-dihydroxy-1-oxowitha-2,5,24-trienolide (aurelianolide B). The new compounds possessed the unusual 16 alpha,17 alpha-dioxygenated group and were fully characterized by spectroscopic techniques, including H-1- and C-13-NMR (DEPT), as well as 2D-NMR (HMBC, HMQC, H-1, H-1-COSY, NOESY) experiments, and HR-MS.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据