[Studies on the chemical constituents of the stems and leaves of Illicium dunnianum Tutch].

Four chemical constituents were isolated from the stems and leaves of Illicium dunnianum: beta-sitosterol (I), 1-triacontanal (II), quercitrin (III) and shikimic acid (IV), and identified on the basis of spectral analysis. Pharmacological experiments have shown that shikimic acid possesses analgesic activities.