ABSOLUTE-CONFIGURATIONS OF SOME OLIGOSTILBENES FROM VITIS-COIGNETIAE AND VITIS-VINIFERA KYOHOU

Authors
ITO J GOBARU K SHIMAMURA T NIWA M TAKAYA Y OSHIMA Y
Citation
J. Ito et al., ABSOLUTE-CONFIGURATIONS OF SOME OLIGOSTILBENES FROM VITIS-COIGNETIAE AND VITIS-VINIFERA KYOHOU, Tetrahedron, 54(24), 1998, pp. 6651-6660
Citations number
8
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron → ACNP
ISSN journal
00404020
Volume
54
Issue
24
Year of publication
1998
Pages
6651 - 6660
Database
ISI
SICI code
0040-4020(1998)54:24<6651:AOSOFV>2.0.ZU;2-O
Abstract
Hepatotoxic oligostilbenes, (+)-vitisin A and (+)-cis-vitisin A were i solated as a pure form, respectively by the method of recycled HPLC. T he structure of cis-vitisin A was confirmed by the photochemical trans formation of vitisin A. The absolute configurations of (+)-ampelopsin A, (+)-ampelopsin B, (+)-vitisin A, (+)-cis-vitisin A and (+)-vitisin D were also determined by chemical and spectroscopic methods. (C) 1998 Elsevier Science Ltd. All rights reserved.