Chemical constituents of Limonium sinense / 中草药

Objective: To study the chemical constituents of Limonium sinense. Methods: Eleven compounds were isolated by extraction, preparation-TLC, repeat-silicagel column, Sephadex-LH20, and opened-ODS column chromatography, and identified on the basis of physicochemical constant and spectra analysis. Results: Eleven compounds were isolated and their structures were identified as isorhamnetin (1), mannitol (2), β-sitosterol (3), oleanolic acid (4), quercetin (5), quercetin-3-O-β-D-glucoside (6), ethylgallate (7), kaempferol (8), kaempferol-3-O-α-L-rhamnopyranoside (9), (+)-catechin (10), and isorhamnetin-3-rutinoside (11). Conclusion: Compounds 4, 6, 7,10, and 11 are obtained from L. sinense for the first time.