Triterpene Saponins from Abvus cantoniensis (Leguminosae). I. Isolation and Characterization of Four New Saponies and a New Sapogenol

摘要

From Abri Herba, the whole plant of Ahrus cantoniensis (Leguminosae), ten new oleanene saponins together with thirteen known ones were isolated. Among them, four saponins called abrisaponins L, A, D, and Ca have been elucidated to be 3-0-a-L-rhamnopyranosyl-(l-2)-β-D-galactopyranosyI-(l ->2)-β-D-gIucuronopyranosyl (designated as /J-fabatriosyl) abrisapogenol L (1), 3-0-β-fabatriosyl abrisapogenol A (2), 3-0-β-fabatriosyI abrisapogcnol D (3), and 3-O-β-fabatriosyl cantoniensistriol (4), respectively.