[Studies on the chemical constituents of Adina pilulifera].

The chemical constituents of Adina pilulifera, which were traditionlly used in the area of Yao minority in Southern China, were isolated and characterized. Two compounds were obtained from the ethyl acetate fraction of ethanol extract of Adina pilulifera, and one compound was obtained from the n-butanol fraction of ethanol extract of Adina pilulifera. Their structure were characterized by spectroscopic analysis and comparison with published data to be sarracenin (1), 2-methyl-5, 7-dihydroxychromone (2) and morroniside (3). Except compound 2, other two compounds were isolated from this plant for the first time, and they were also obtained from the Adina genus for the first time.