Study on the Chemical Constituents from Souliea Vaginata (Maxim.) Franch

OBJECTIVE To study the chemical constituents of the ethanol extract from the plant Souliea vaginata (Maxim.) Franch. METHODS The chemical constituents were isolated by multi-chromatographic methods as silica gel, macroporous resin, MCI, Sephadex LH-20, C₁₈-reversed-phase chromatography. The structures were identified on the basis of chemical methods and spectroscopic evidence. RESULTS Six cycloartane triterpenoid compounds were isolated and identified as cimilactone A ( 1 ), 23-Epi-26-deoxyactein ( 2 ), soulieosides I ( 3 ), neocimicigenoside B ( 4 ), asiaticoside A ( 5 ), 25-O- acetylcimigenol-3-O-β-D-xylopyranoside ( 6 ). CONCLUSION Cycloartane triterpenoids existed as characteristic constituents in Souliea vaginata (Maxim.) Franch. Compound 1 , 4 and 5 were separated from this species for the first time.