Four New Oleanene Glycosides from Sophorae Subprostratae Radix. III

概要

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In a previous paper, we reported the isolation and structure determination of three new oleanene glycosides, subprosides I, II and III, together with four known glycosides, kudzusaponin A_3,abrisaponin I, soyasaponin II and dehydrosoyasaponin I from Sophora subprostrata CHUX et T. CHEN (Leguminosae). In a continuing study on this crude drug, we report the characterization of four more new minor glycosides, subprosides IV (1), V (2), VI (3) and VII (4). Their chemical structures could be represented as 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-galactopyranosyl-(1→2)-β-D-glucuronopyranosyl abrisapogenol D 30-O-β-D-glucopyranoside (1), 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-galactopyranosyl-(1→2)-β-D-glucuronopyranosyl wistariasapo-genol B 30-O-β-D-glucopyranoside (2), 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-galactopyranosyl-(1→2)-β-D-glucuronopyranosyl kudzusapogenol A 21-O-α-L-rhamno-pyranoside (3) and 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-galactopyranosyl-(1→2)-β-D-glucuronopyranosyl soyasapogenol B 22-O-β-D-glucopyranosyl-(1→2)-β-D-xylopyranoside (4) on the basis of chemical and physiochemical evidence.
社団法人日本薬学会の論文
1992-07-25