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      New steroidal saponins from the rhizomes of Anemarrhena asphodeloides Bunge (Liliaceae).

      Chemical & pharmaceutical bulletin
      Magnetic Resonance Spectroscopy, Plants, Medicinal, chemistry, Saponins, isolation & purification, Spectrometry, Mass, Fast Atom Bombardment, Steroids

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          Abstract

          From the rhizome of Anemarrhena asphodeloides Bunge (Liliaceae), four new steroidal saponins named anemarrhenasaponins I-IV (1-4) were isolated, together with known saponins, timosaponin A-III (5), marcogenin diglycoside (6) and timosaponin B-II (7) and a xanthone C-glycoside, mangiferin. These saponins are coprostane type steroidal glycosides. Their structures were established on the basis of spectroscopic and chemical evidence.

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