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Studies on chemical constituents of Hibiscus mutabilis

YAO Li-yun, LU Yang, CHEN Ze-nai (Department of Chemistry, Shanghai Second Medical University, Shanghai 200025, China)  
Object To study the chemical constituents of Hibiscus mutabilis L.Methods Isolation and purification were carried out on silica gel, or polyamide column chromatography etc. Constituents were identified and structurally elucidated by physicochemical properties and spectral analysis.Results Ten compounds were obtained, nine of them were determined as tetracosanoic acid (Ⅰ), β-sitosterol (Ⅱ), daucosterol (Ⅲ), salicylic acid (Ⅳ), emodin (Ⅴ), rutin (Ⅵ), kaempferol-3-O-β-rutinoside (Ⅶ), kaempferol-3-O-β-robinobinoside (Ⅷ) and kaempferol-3-O-β-D-(6-E-p-hydroxycinnamoyl)-glucopyranoside (Ⅸ).Conclusion All compounds are isolated from the plant for the frist time except Ⅱ and Ⅵ.
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