Rhamnopyranosylvitexin derivatives from celtis australis

Abstract

A methanolic extract of Celtis australis leaves yielded 2"-α-rhamnopyranosylvitexin and 2"-α-rhamnopyranosyl-7-O- methylvitexin. Both compounds are known from other sources from earlier investigations but the full NMR data for the latter compound are reported for the first time.