title: Two new chalcone glycosides from the stems of Entada phaseoloides.
abstract: Two new chalcone glycosides 4'-O-(6″-O-galloyl-β-d-glucopyranosyl)-2',4-dihydroxychalcone (1) and 4'-O-(6″-O-galloyl-β-d-glucopyranosyl)-2'-hydroxy-4-methoxychalcone (2) together with one known chalcone glycoside 4'-O-β-d-glucopyranosyl-2'-hydroxy-4-methoxychalcone (3) were isolated from the stems of Entada phaseoloides. The structures of the new compounds were elucidated on the basis of extensive spectroscopic analysis, including HSQC, HMBC, (1)H-(1)H COSY, and chemical evidences. This is the first report of chalcone-type compounds isolated from the genus Entada.
authors.affiliation: School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
authors.forename: Zhong-xiang
authors.initials: ZX
authors.lastname: Zhao
authors.forename: Jing
authors.initials: J
authors.lastname: Jin
authors.forename: Chao-zhan
authors.initials: CZ
authors.lastname: Lin
authors.forename: Chen-chen
authors.initials: CC
authors.lastname: Zhu
authors.forename: Yi-ming
authors.initials: YM
authors.lastname: Liu
authors.forename: Ai-hua
authors.initials: AH
authors.lastname: Lin
authors.forename: Ying-xiang
authors.initials: YX
authors.lastname: Liu
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.forename: Hua-feng
authors.initials: HF
authors.lastname: Luo
mesh_terms: D047188:Chalcones / Q000737:chemistry / Q000302:isolation & purification*; D007887:Fabaceae / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D018547:Plant Stems
chemical_list: C570485:4'-O-(6''-O-galloyl-beta-D-glucopyranosyl)-2',4-dihydroxychalcone; C570486:4'-O-(6''-O-galloyl-beta-D-glucopyranosyl)-2'-hydroxy-4-methoxychalcone; D047188:Chalcones; D006027:Glycosides; D010936:Plant Extracts