Biflavone glucosides from Ginkgo biloba yellow leaves.
Phytochemical investigation of Ginkgo biloba (Ginkgoaceae) has resulted in the isolation of two new biflavone glucosides, ginkgetin 7''-O-beta-D-glucopyranoside (1) and isoginkgetin 7-O-beta-D-glucopyranoside (2). The structures were determined on the basis of chemical and spectroscopic evidences.
Hyun
Sook Kyung
SK
Faculty of Food Science and Biotechnology, Pukyong National University; Busan 608-737, Korea.
Kang
Sam Sik
SS
Son
Kun Ho
KH
Chung
Hae Young
HY
Choi
Jae Sue
JS
D002855:Chromatography, Thin Layer; D047309:Flavones / Q000737:chemistry*; D020441:Ginkgo biloba / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry; D012997:Solvents; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet
D047309:Flavones; D006027:Glycosides; D012997:Solvents