Studies on the Constituents of Ophiopogonis Tuber. III. On the Structure of Ophiopogonin D

Abstract

The chemical structure of ophiopogonin D, a glycoside isolated from the tuber of Ophiopogon japonicus KER-GAWLER var. genuinus MAXIM.(Liliaceae) was established to be ruscogenin (1)-[α-L-rhamnopyranosyl (1_rham→2_fue)][D-xylopyranosyl (1_xyl→3_fue)]β-D-fucopyranoside (Ia). Ophiopogonin D is one of spirostane type glycosides whose sugar moietylinks to the hydroxyl group other than C₃ hydroxyl group of the aglycone.