title: Triterpene glycosides from the seeds of Astragalus sinicus L.
abstract: From the seeds of Astragalus sinicus L. (Leguminosae), seven triterpene glycosides were isolated and identified as soyasaponin I-III methyl esters (1-3) which were treated with CH2N2 during the separation procedure, soyasaponin IV (4), soyasapogenol B 3-O-beta-D-glucuronopyranoside (5), 3-O-alpha-L-rhamnopyranosyl(1-->2)-beta-D-xylopyranosyl(1-->2)-beta-D- glucuronopyranosyl 3 beta, 22 beta, 24-trihydroxy-11-oxoolean-12-ene (6), whose sapogenol (8) was obtained by enzymatic hydrolysis using glycyrrhizinic acid hydrolase, unambiguously characterized and designated as complogenin, and 3-O-alpha-L-rhamnopyranosyl(1-->2)-beta-D-galactopyranosyl(1-->2)-beta-D - glucuronopyranosyl complogenin (7).
authors.affiliation: Faculty of Pharmaceutical Sciences, Kumamoto University, Japan.
authors.forename: B
authors.initials: B
authors.lastname: Cui
authors.forename: J
authors.initials: J
authors.lastname: Inoue
authors.forename: T
authors.initials: T
authors.lastname: Takeshita
authors.forename: J
authors.initials: J
authors.lastname: Kinjo
authors.forename: T
authors.initials: T
authors.lastname: Nohara
mesh_terms: D006027:Glycosides / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000032:analysis; D012639:Seeds / Q000737:chemistry*; D014315:Triterpenes / Q000032:analysis*
chemical_list: D006027:Glycosides; D012503:Saponins; D014315:Triterpenes