New steroidal saponins from the rhizomes of Anemarrhena asphodeloides Bunge (Liliaceae).
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.
Faculty of Pharmaceutical Sciences, Josai University, Saitama, Japan.
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Saito
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Nagase
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Ichinose
D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*
D012503:Saponins; D013256:Steroids