A New Phenylpropanoid Glucoside from Remusatia vivipara(Araceae)

A new phenylpropanoid glucoside,caffeyl alcohol-3-O-b-D-glucopyranoside,together with nine known compounds,was isolated from the dry corms of Remusatia vivipara Schott. The structure of the new compound was determined by the spectroscopic method and acidic hydrolysis. The known compounds included three phenylpropanoids (coniferin,caffeyl alcohol and coniferyl alcohol),three neolignans [4,7,9,9'-tetrahydroxy-3,3'-dimethoxy-8-O-4'-neolign-7'-ene,(7R,8S)-D7'-3,3'-dimethoxy-4,7,9,9'-tetrahydroxy-8-O-4'-neolignan-7-O-B-D-glucopyranoside,and dehydrodiconiferyl alcohol-4-B-D-glucoside],an amide [(2E,4E)-N-isobutyl-2,4-decadienamide],a steroid saponin (methyl proto-taccaoside) and a triterpenoid saponin (saxifragifolin B ). All compounds were isolated from the genus Remusatia for the first time.