Rhamnopyranosylvitexin derivatives from Celtis australis

摘要

A methanolic extract of Celtis australis leaves yielded 2"-α-rhamno-pyranosylvitexin 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.