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The constituents of Sanguisorba hakusanensis leaves (Rosaceae), of which the roots have been used as an astringent, hemostatics and antiphlogistics, were studied phytochemically. From water fraction of the MeOH extract, gallic acid 3-O-beta-D-(6’’-O-galloyl)-glucopyranoside(I), quercetin-3-O-beta-D-galactopyranoside(II), quercetin-3-O-alpha-L-arabinopyranoside(III) and 2alpha, 3beta, 19alpha, 23-tetrahydroxyurs-12-en-28-oic acid 28-O-beta-D-glucopyranoside(IV) were isolated by column chromatographic separation using Amberlite XAD-2, ODS-gel and Sephadex LH-20. The structure of these compounds were elucidated by spectroscopic parameters of 1H-NMR, 13C-NMR, 1H-1H COSY, 13C-1H COSY, EI-Mass, FAB-Mass, IR, UV and by comparison with authentic samples.
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