Three new flavonoid glycosides from Peperomia dindygulensis

To study the chemical constituents of Peperomia dindygulensis Miq., chromatography was used to isolate and purify the chemical constituents, their structures were elucidated by spectroscopic data and physical-chemical properties. Three compounds were obtained. They were identified as: hypolacetin-4′,7-dimethyl ether-8-O-β-D-glucopyranoside (I), isoscutellarein-4′-methyl ether-8-O-α-L-arabinopyranosyl-(1→4)-β-D-glucopyranoside (II), isoscutellarein-4′,7-dimethyl ether-8-O-α-L-arabinopyranosyl-(1→4)-β-D-glucopyranoside (III). Compounds I, II and III are all new compounds.