Studies on the constituents of leguminous plants. VI. The structure elucidations of monoterpene glycosides from fruits of Gymnocladus chinensis Baillon.

Abstract

Two monoterpene glycosides were isolated from the fruits of Gymnocladus chinensis (Leguminosae) [a plant widely distributed in south China, the dried fruit of which is used as a crude drug in Chinese traditional medicine as an expectorant]. On the basis of chemical and physicochemical evidence, these glycosides were characterized as (6S)-2-trans-6-.alpha.-L-arabinopyranosyloxy-2,6-dimethyl-2,7-octadienoic acid and (6S)-2-trans-2,6-dimethyly-6-[3-O-(.beta.-D-glucopyranosyl)-4-O-(2-methylbutyroly)-.alpha.-L-arabinopyranosyloxy]-2,7-octadienoic acid.