H-1 DELINEATION OF CONFORMATIONAL PARAMETERS OF CONSTITUENTS OF SILYBUM-MARIANUM IN SOLUTION

被引：5

作者：

DELFINI, M

DICOCCO, ME

GAGGELLI, E

LEPRI, A

VALENSIN, G

机构：

[1] UNIV SIENA,DEPARTIMENTO CHIM,I-53100 SIENA,ITALY

[2] UNIV BASILICATA,IST CHIM,I-85100 POTENZA,ITALY

来源：

SPECTROSCOPY LETTERS | 1990年 / 23卷 / 08期

关键词：

molecular motions; NMR; Silymarine derivatives;

D O I：

10.1080/00387019008054477

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Silybin, silydianin and silychristin, the three major constituents of the crude extract of Silybum marianum, were investigated by means of 1H-NMR in [2H6]-acetone. Non selective, single-selective and double-selective 1H-NMR spin-lattice relaxation rates were measured and interpreted in terms of dipolarly interacting proton pairs. The motional correlation time was found in the range 0.50-0.60 ns for all compounds. © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：1007 / 1025

页数：19

共 16 条

[1] CONSTITUENTS OF SILYBUM-MARIANUM - STRUCTURE OF ISOSILYBIN AND STEREOCHEMISTRY OF SILYBIN [J].