Minor Flavanones from Erythrina abyssinica
Four new prenylated flavanones, abyssinone-V 4'-methyl ether (1) and abyssinoflavanones IV (2), V (3), and VI (4), have been isolated as minor flavanones from the African medicinal plant, Erythrina abyssinica, together with a known flavanone, sigmoidin D. The structure elucidation of compounds 1-4 by spectroscopic studies is described.
Moriyasu
M
Department of Natural Medicinal Chemistry, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe 658, Japan, Department of Botany, University of Nairobi, P.O. Box 30197, Nairobi, Kenya, and Department of Medicine, University of Nairobi, P.O. Box 30588, Nairobi, Kenya.
Ichimaru
M
Nishiyama
Y
Kato
A
Mathenge
SG
Juma
FD
Nganga
JN