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Title: [Chemical constituents of flavonoids from flowers of Koelreuteria paniculata]. Author: Qu QH, Zhang L, Bao H, Zhang JH, You XJ, Wang JX. Journal: Zhong Yao Cai; 2011 Nov; 34(11):1716-9. PubMed ID: 22506395. Abstract: OBJECTIVE: To study the chemical constituents from flowers of Koelreuteria paniculata. METHODS: Column chromatography and spectral analysis were used to isolate and identify the constituents. RESULTS: The EtOAc fraction from flowers of Koelreuteria paniculata was separated and purified. Nine compounds were obtained and identified as:sitosterol glucoside (I), gallic acid (II), kaempferol (III), luteolin (IV), kaempferol-3-O-(6"-acetyl)-beta-D-glucopyranoside (V), hyperoside-2"-O-acetyl (VI), hyperoside-2"-O-galloyl (VII), hyperoside (VIII), kaempferol-3-O-D-glucopyranoside (IX). CONCLUSION: Nine compounds are isolated for the first time from flowers of Koelreuteria paniculata. Compounds IV, V, VI and IX are isolated from this genus for the first time.[Abstract] [Full Text] [Related] [New Search]