Alkaloids of Daphniphyllum angustifolium

The alkaloids of Daphniphyllum angustifolium were investigated.The whole plant was extracted with 95% EtOH,six alkaloids were isolated and purified with column chromatography over silica gel,RP-18 and Sephadex LH-20.Based on spectral analysis,their structures were identified as daphnilactone B(1),zwitterionic alkaloid(2),yuzurine(3),dehydrodaphnigracilline(4),deoxyyuzurimine(5) and macrodaphniphyllidine(6).All of compounds were obtained from the plant for the first time.