A B-RING CONTRACTED SPIROSTANE FROM TACCA-LEONTOPETALOIDES

被引：9

作者：

ABDELAZIZ, A

BRAIN, K

SHATALEBI, MA

BLUNDEN, G

PATEL, A

CRABB, TA

BASHIR, AK

机构：

[1] UNIV WALES COLL CARDIFF,WELSH SCH PHARM,CARDIFF CF1 3XF,WALES

[2] PORTSMOUTH POLYTECH,DEPT CHEM,PORTSMOUTH PO1 2DZ,HANTS,ENGLAND

[3] NATL COUNCIL RES,KHARTOUM,SUDAN

来源：

PHYTOCHEMISTRY | 1990年 / 29卷 / 08期

关键词：

(25R)-B-nor(7)-6β-formylspirostane-3β; 5β-diol; B-ring contracted spirostane; steroidal sapogenin; Tacca leontopetaloides; Taccaceae;

D O I：

10.1016/0031-9422(90)85200-Y

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Leontogenin, 25(R)-B-nor(7)-6β-formyl-spirostane-3β,5β-diol, was isolated from the acid hydrolysate of an extract of leaves of Tacca leontopetaloides and its structure elucidated from IR, 1H and 13C NMR spectroscopic and mass spectrometric data. This is the first report of a naturally occurring spirostane showing B-ring contraction. The possible origin of this compound is discussed. © 1990.

引用

页码：2623 / 2627

页数：5