机构：[1] Guangzhou Univ Tradit Chinese Med, Affiliated Hosp 2, Guangzhou 510120, Peoples R China[2] Guangzhou Univ Tradit Chinese Med, Sch Chinese Pharmaceut Sci, Guangzhou 510006, Guangdong, Peoples R China[3] Sun Yat Sen Univ, Affiliated Hosp 3, Guangzhou 510630, Guangdong, Peoples R China
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摘要：
Two new compounds, (E)-4-(3, 4-dihydroxyphenyl)-N-(1-hydroxy-2-(4-hydroxyphenyl) ethyl)-2-oxobut-3-enamide (1) and phloretin2-O-beta-D-apiofuranosyl (1 -> 6)-beta-D-glucopyranoside (2) were isolated from Lithocarpus polystachyus Rehd. Their structures were determined on the basis of analysis of their 1D and 2D NMR spectroscopic and mass spectral data.
