One new C_(21) steroid from canes of Marsdenia tenacissima
- VernacularTitle:通光藤中一个新C_(21)甾体成分
- Author:
Jianxu LI
;
Hua LI
;
Na CHEN
;
Li ZHANG
;
Yan CHEN
;
Meihua GAO
- Publication Type:Journal Article
- Keywords:
the canes of Marsdenia tenacissima (Roxb.) Wight et Arn.;
C21 steroid;
11?,12?-di-O-2-methylbutyryl-tenacigenin B;
tenacissoside O
- From:
Chinese Traditional and Herbal Drugs
1994;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study chemcial constituents in the canes of Marsdenia tenacissima.Methods Chemical constituents were isolated and purified by silica gel and ODS column chromatography.The structures were identified by means of physico-chemical and spectral data.Results From the 70% ethanol extract of the material,four compounds were isolated.Their structures were identified as 11?,12?-di-O-2-methylbutyryl-tenacigenin B (Ⅰ),11?-O-2-methylbutyryl-12?-O-acetyl-tenacigenin B (Ⅱ),tenacissoside H (Ⅲ),and marsdenoside A (Ⅳ),respectively.Conclusion Compound Ⅰ is a new C21 steroid compound,named tenacissoside O.
