中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3-O-β-D-xylopyranosyl-(1→2)-α-L-arabinopyranosyl-(1→4)-β-D-xylopyranosyl-(1→2)-β-D-galactopyranosylmachaerinic acid 28-O-α-L-rhamnopyranosyl ester | —— | C57H92O25 | 1177.34 |
Two new triterpenoid saponins were isolated from the ethanolic extract of the aerial parts of Astragalus corniculatus Bieb. The structures of the saponins were elucidated as 3β -O-[O-4-oxopentopyranosyl-( 1 → 2)-β -D-glucopyranosyl]-21α-hydroxyolean-12-ene-28-oic acid (1) and 21α- hydroxyolean-12-ene-28-oic acid 3β -4-oxo-pentopyranoside (2) by chemical and spectral methods.