Constituents from seeds of Alpinia galanga Wild. and their anti-ulcer activities.

Abstract

The potent anti-ulcer principles [in rats], 1''-acetoxychavicol acetate and 1''-acetoxyeugenol acetate, were isolated from seeds of Alpinia galanga Wild., and established by chemical syntheses. Besides, 3 sesquiterpenes, caryophyllene oxide, caryophyllenol-I and caryophyllenol-II, along with n-pentadecane, n-7-heptadecene and fatty acid methyl esters, were also isolated.