C-13 NUCLEAR MAGNETIC-RESONANCE SPECTRAL ANALYSIS OF NATURALLY OCCURRING WITHANOLIDES AND THEIR DERIVATIVES

被引：30

作者：

PELLETIER, SW ^{[1
]}

MODY, NV ^{[1
]}

NOWACKI, J ^{[1
]}

BHATTACHARYYA, J ^{[1
]}

机构：

[1] UNIV GEORGIA,DEPT CHEM,ATHENS,GA 30602

来源：

JOURNAL OF NATURAL PRODUCTS | 1979年 / 42卷 / 05期

关键词：

D O I：

10.1021/np50005a012

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The 13C NMR spectra of the naturally occurring withanolides: withaferin A, 2, 3-dihydrowithaferin A, and seventeen related derivatives have been recorded at 15.03 MHz. The signal due to each carbon atom in these withanolides has been assigned with the help of standard techniques and the spectra have been analyzed in terms of substituent effects. Particular attention is directed towards features of the spectra which are most useful for structure determination and identification of the basic withanolide skeleton in these steroidal lactones. © 1979, American Chemical Society. All rights reserved.

引用

页码：512 / 521

页数：10

共 13 条

[1]

ALLURI RR, 1976, LLOYDIA, V39, P405

[2] C-13 NMR-STUDIES .69. C-13 NMR-SPECTRA OF STEROIDS - SURVEY AND COMMENTARY [J].