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  • Title: [Triterpenoid saponins from bark Mitragyna inermis].
    Author: Cheng ZH, Yu BY, Yang XW, Zhang J.
    Journal: Zhongguo Zhong Yao Za Zhi; 2002 Apr; 27(4):274-7. PubMed ID: 12774371.
    Abstract:
    OBJECTIVE: To study the constituents of Mitragyna inermis that have an anti-tumor activity on Bel-7402 of hepatic carcinoma. METHOD: The compounds were isolated by column chromatography on silica gel, ODS, Sephadex LH-20 separately and their structures were elucidated by chemical and spectral technology. RESULT: Three quinovic acid glycosides, quinovic acid 3 beta-beta-D-glucopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-28-O-beta- D-glucopyranoside(I), quinovic acid 3 beta-O-beta-D-quinovopyranoside(II), quinovic acid 3 beta-O-beta-D-glucopyranoside(III), were obtained. CONCLUSION: I, II were isolated from Mitragyna for the first time.
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