Constituents from Seeds of Alpinia galanga Wild. and Their Anti-ulcer Activities

Abstract

The potent anti-ulcer principles, 1′-acetoxychavicol acetate (1) and 1’-acetoxyeugenol acetate (2), were isolated from seeds of Alpinia galanga Wild., and established by chemical syntheses. Besides, three sesquiterpenes, caryophyllene oxide (10), caryophyllenol-I (11) and caryophyllenol-II (13), along with n-pentadecane, n-7-heptadecene and fatty acid methyl esters, were also isolated. © 1976, The Pharmaceutical Society of Japan. All rights reserved.