1.
Chem Pharm Bull (Tokyo)
; 54(7): 1034-6, 2006 Jul.
Artículo
en Inglés
| MEDLINE
| ID: mdl-16819226
RESUMEN
Fractionation of the methanol extract of the stem bark of Turraeanthus africanus led to the isolation of two new alkaloids designated turraeanthin A and B, together with two known alkaloids. The structures of the new alkaloids were elucidated by means of spectroscopic analysis and characterized as 10-O-demethyl-17-O-methyl isoarnottianamide and 11-demethoxyl-12-methoxyl oxynitidine respectively.