School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
Fitoterapia. 2011 Oct;82(7):1102-5. doi: 10.1016/j.fitote.2011.07.005. Epub 2011 Jul 20.
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.
4′-O-(6″-O-没食子酰基-β-d-吡喃葡萄糖基)-2′,4-二羟基查尔酮（1）和 4′-O-(6″-O-没食子酰基-β-d-吡喃葡萄糖基)-2′-羟基-4-甲氧基查尔酮（2），以及一个已知的查尔酮糖苷 4′-O-β-d-吡喃葡萄糖基-2′-羟基-4-甲氧基查尔酮（3）。新化合物的结构是基于广泛的光谱分析，包括 HSQC、HMBC、(1)H-(1)H COSY 和化学证据来阐明的。这是首次从含羞草属植物中分离得到查尔酮类化合物。
