title: Flavonoid glycosides from Byrsocarpus coccineus leaves. Schum and Thonn (Connaraceae).
abstract: The bioactive ethyl acetate and N-butanol soluble parts of an ethanolic extract of Byrsocarpus coccineus leaves was subjected to column chromatography over silica gel G (60-120 microns) and repeated purification of the flavonoid rich fraction over sephadex LH-20 eluted with methanol led to the isolation of three flavonoid glycosides identified as quercetin 3-O-alpha-arabinoside (I), quercetin (II) and quercetin 3-beta-D-glucoside. Their structures were elucidated by (1)H and (13)C-NMR data and are reported here for the first time in this plant.
authors.affiliation: Department of Pharmaceutical and Medicinal Chemistry, Ahmadu Bello, University, Zaria-Nigeria. ahmadu2001@yahoo.com
authors.forename: A A
authors.initials: AA
authors.lastname: Ahmadu
authors.forename: H S
authors.initials: HS
authors.lastname: Hassan
authors.forename: M U
authors.initials: MU
authors.lastname: Abubakar
authors.forename: I N
authors.initials: IN
authors.lastname: Akpulu