A novel rearranged cholestane glycoside with a δ-lactone ring system from Ornithogalum saundersiae bulbs

被引：6

作者：

Kuroda, M

Mimaki, Y

Koshino, H

Sashida, Y

机构：

[1] Tokyo Univ Pharm & Life Sci, Sch Pharm, Hachioji, Tokyo 1920392, Japan

[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

来源：

HETEROCYCLES | 2002年 / 56卷 / 1-2期

关键词：

Ornithogalum saundersiae; Liliaceae; rearranged cholestane glycoside; delta-lactone ring; selective PFG-HMBC;

D O I：

10.3987/COM-01-S(K)34

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The bulbs of Ornithogalum saundersiae have been revealed to contain a variety of cholestane glycosides. Further chemical investigation of the MeOH extract of O. saundersiae bulbs have resulted in the isolation of a novel 24(23-->2)abeo-cholestane glycoside with a delta-lactone system (1). The structure of 1 was elucidated on the basis of extensive spectroscopic analysis and the result of acid hydrolysis.

引用

页码：531 / 536

页数：6

共 5 条

[1] Increased HMBC sensitivity for correlating poorly resolved proton multiplets to carbon-13 using selective or semi-selective pulses [J].