Two new flavonol glycosides from leaves of Koelreuteria paniculata.
Two new flavonol glycosides were isolated from dried leaves of Koelreuteria paniculata Laxm. (Sapindaceae) and characterized as 6,8-dihydroxy-afzelin and afzelin 3"-O-gallate, based on chemical and spectral evidences, in addition to nine known polyphenolic metabolites, including eight isolated for the first time from this species.
Mahmoud
I
I
Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, Ain-Helwan, Cairo, Egypt. msmarzouk@yahoo.co.uk
Moharram
F A
FA
Marzouk
M S
MS
Soliman
H S
HS
el-Dib
R A
RA
D004534:Egypt; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D044949:Kaempferols; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D044945:Proanthocyanidins; D013056:Spectrophotometry, Ultraviolet
C433778:6,8-dihydroxyafzelin; D005419:Flavonoids; D006027:Glycosides; D044949:Kaempferols; D044945:Proanthocyanidins; C433779:afzelin 3''-O-gallate