Flavonoids from Tephrosia species part 9 - An unusual isopropenyldihydrofuran biflavanol from Tephrosia crassifolia

Authors
Gomez-Garibay, F Calderon, JS Arciniega, MD Cespedes, CL Tellez-Valdes, O Taboada, J
Citation
F. Gomez-garibay et al., Flavonoids from Tephrosia species part 9 - An unusual isopropenyldihydrofuran biflavanol from Tephrosia crassifolia, PHYTOCHEM, 52(6), 1999, pp. 1159-1163
Citations number
13
Categorie Soggetti
Agricultural Chemistry","Animal & Plant Sciences
Journal title
PHYTOCHEMISTRY
ISSN journal
00319422 → ACNP
Volume
52
Issue
6
Year of publication
1999
Pages
1159 - 1163
Database
ISI
SICI code
0031-9422(199911)52:6<1159:FFTSP9>2.0.ZU;2-N
Abstract
The roots and aerial parts of Tephrosia crassifolia afforded an isopropenyl dihydrofuran biflavanol and a new chalcone. The structures and relative con figuration were established by spectroscopic and chemical methods, and conf irmed by X-ray diffraction. Crassifolin is the second 3,4 " ether-linked bi flavan-4-ol to be isolated from the genus Tephrosia. (C) 1999 Elsevier Scie nce Ltd. All rights reserved.