A new pentacyclic cucurbitane glucoside and a new triterpene from the fruits of Gymnopetalum integrifolium

Abstract

A new pentacyclic cucurbitane glucoside, named aoibaclyin (1) and a new triterpene (2) have been isolated from the EtOH extract of the fruits of Gymnopetalum integrifolium KURZ (Cucurbitaceae), together with three known compounds, bryoamaride (3), 25-O-acetylbryoamaride (4) and β-sitosterol 3-O-β-D-glucopyranoside (5). The structures of these compounds were elucidated by spectroscopic analyses. © 2002 Pharmaceutical Society of Japan.