抄録
Besides p-coumaric acid, methyl p-coumarate, β-sitosterol, oleanolic acid and 3-epioleanolic acid, three new phenylpropanoid glycosides, rossicasides B, C and D were isolated from fresh plants of Boschniakia rossica (CHAM. et SCHLTDL.) FEDTSCH. et FLEROV (Orobanchaceae). The structures of rossicasides B, C and D were established as p-hydroxycinnamyl alcohol 1-O-β-D-glucopyranosyl (1→4)-α-L-rhamnopyranosyl (1→3)-β-D-(4-O-caffeyl)-glucopyranoside (1), p-hydroxycinnamyl alcohol 1-O-β-D-glucopyranosyl (1→2)-β-D-(6-O-p-coumaryl)-glucopyranoside (2), and p-hydroxycinnamyl alcohol 1-O-β-D-glucopyranosyl (1→2)-β-D-(4-O-p-coumaryl)-glucopyranoside (3), respectively.
