Alkaloids from Corydalis bungeana

Aim:To study the alkaloids from Corydalis bungeana.Methods:The alkaloids were isolated and purified by chromatography and their structures were identified by spectral data and others methods.Results:Sixteen alkaloids were isolated and identified as corynoline,coryincine,dihydrosanguinarine,(+)-13-epicorynoline,tetrahydrocorysamine,tetrahydrocoptisine,6,7-methylenedioxy-2-(6-acetyl-2,3-methylenedioxybenzyl)-1(2H)-isoquinolinone,N-trans-feruloyltyramine,protopine,corysamine,dehydrocheilanthifoline,coptisine,oxysanguinarine,norsanguinarine,6-acetonyldihydrosanguinarine,and spallidamine.Conclusion:N-trans-feruloyltyramine was obtained from Corydalis for the first time;coryincine,corysamine,dehydrocheilanthifoline,coptisine,oxysanguinarine,norsanguinarine,6-acetonyldihydrosanguinarine and spallidamine were firstly isolated from Corydalis bungeana.