From the tubers of Corydalis cava (L.) SCHW. et KOERTE the following alkaloids were isolated: (+)-bulbocapnine, (+)-corydaline, (+)- and (±)-tetrahydropalmatine, (+)- and (±)-thalictricavine, (+)-corybulbine, corycavine, protopine, (+)-corypalmine, (±)- and (+)-isocorypalmine, (+)-corytuberine, (+)-corydine, (+)- and (±)-corycavidine, (+)-canadine, (+)-stylopine, (-)-scoulerine, capnoidine, dehydrocorydaline, corysamine, coptisine; further the following alkaloids not yet described as components of this plant: (+)-tetrahydrocorysamine, allocryptopine, palmatine, berberine, dehydrocorybulbine, dehydrothalictricavine, (+)-α-stylopine methohydroxide and the alkaloid CC2, as well as the new neutral alkaloids dehydroapocavidine, (+)-bulbocapnine methohydroxide, and α-tetrahydrocorysamine methohydroxide. Further the presence of apocavidine, columbamine, jatrorrhizine and magnoflorine was also proved. In the aerial parts (+)-bulbocapnine, (+)-stylopine, protopine, capnoidine, glaucine, domestine alkaloid CC1 (probably dehydrodomestine), predicentrine, isoboldine corydine, coptisine, corysamine and traces of bulbocapnine methohydroxide were found.
从洼地黄(Corydalis cava)的块茎中分离出以下生物碱:(+)-鼠曲草碱、(+)-洼地黄碱、(+)-和(±)-四氢棕榈碱、(+)-和(±)-洼地黄碱、(+)-洼地黄酮、洼地黄碱、原品、(+)-洼地黄碱、(±)-和(+)-异洼地黄碱、(+)-洼地黄碱、(+)-洼地黄碱、(+)-和(±)-洼地黄碱、(+)-康定碱、(+)-石斛菪碱、(-)-斯库勒碱、卡普诺伊丁、去氢洼地黄碱、洼地黄胺、黄连碱;此外还有以下生物碱尚未作为该植物的组分描述:(+)-四氢洼地黄胺、异黄嘌呤、棕榈碱、小檗碱、去氢洼地黄酮、去氢洼地黄碱、(+)-α-石斛菪碱甲羟化物和生物碱CC2,以及新的中性生物碱去氢洼地黄胺、(+)-鼠曲草碱甲羟化物和α-四氢洼地黄胺甲羟化物。此外,还证明了洼地黄素、哥伦巴碱、黄连碱和芒黄素的存在。在空气部分中发现了(+)-鼠曲草碱、(+)-石斛菪碱、原品、卡普诺伊丁、黄漆碱、家禽生物碱CC1(可能是去氢家禽生物碱)、预中心碱、异博丁、洼地黄碱、黄连碱和微量的鼠曲草碱甲羟化物。