Xanthones and other constituents of vismia parviflora

Abstract

The stems and fruits of Vismia parviflora have been shown to contain sitosterol, betulinic acid, lupeol, friedelin, b-friedelinol, shikimic acid, 3,4-dihydroxybenzoic acid, quercetin, 1,7-dihydroxyxanthone, 1,5-dihydroxy-8-methoxyxanthone, madagascine, chrysophanic acid, vismiaquinone-A and its isomer vismiaquinone-C. The structures of these compounds have been elucidated by using spectroscopic data as MS, UV, IR, one- and two-dimensional NMR.