Yong-Yong Zhang1, Jia-Bo Luo. 1. Key Laboratory of Research of TCM and New Drug, Southern Medical University, Guangzhou 510515, China. cpuzyy@sohu.com
Abstract
OBJECTIVE: To analyze the chemical constituents of Hedyotis diffusa. METHODS: Column chromatographies were used to isolate and purify the chemical constituents of this plant, and their structures were identified by spectral analysis and physicochemical properties. RESULTS AND CONCLUSION: Seven compounds were isolated and identified as p-coumaric acid (I), methyl-p-coumarate (II), 2-formyl-5- hydroxymethylfuran (III), quercetin (IV), kaempferol (V), beta-sitosterol(VI) and daucosterol(VII), respectively, among which the compounds II and III were isolated from Hedyotis diffusa for the first time.
OBJECTIVE: To analyze the chemical constituents of Hedyotis diffusa. METHODS: Column chromatographies were used to isolate and purify the chemical constituents of this plant, and their structures were identified by spectral analysis and physicochemical properties. RESULTS AND CONCLUSION: Seven compounds were isolated and identified as p-coumaric acid (I), methyl-p-coumarate (II), 2-formyl-5- hydroxymethylfuran (III), quercetin (IV), kaempferol (V), beta-sitosterol(VI) and daucosterol(VII), respectively, among which the compounds II and III were isolated from Hedyotis diffusa for the first time.