[Chemical constituents of Dysosma aurantiocaulis (H.-M.) Hu and Dysosma pleianthum Woods]

Roots of D. aurantiocaulis and D. pleianthum contain ten lignans: picropodophyllin, podophyllotoxin, 4'-demethylpodophyllotoxin, diphyllin, dehydropodophyllotoxin, podophyllotoxone, picropodophyllone, isopicropodophyllone, 4'-demethylpodophyllotoxone and dysosmajol; two anthraquinones: physcion and dysoanthraquinone. A HPLC method for the identification of aryltetralin Lignans is described.