Quaternary protoberberine alkaloids from Ceratocapnos heterocarpa

Quaternary protoberberine alkaloids from Ceratocapnos heterocarpa (−)-Caseamine from Ceratocapnos heterocarpa: Structure and total synthesis Cularine N-oxide alkaloids from Ceratocapnos heterocarpa Structure and total synthesis of (-)-malacitanine. An unusual protoberberine alkaloid from ceratocapnos heterocarpa (±)-heterocarpine, a hydroxymethylated isoquinoline alkaloid from ceratocapnos heterocarpa N-Benzylisoquinoline alkaloids from Ceratocapnos heterocarpa Cularine alkaloids from Ceratocapnos heterocarpa The Isolation and Characterization of a New Tetrahydroprotoberberine Alkaloid from Corydalis clarkei The Isolation and Characterization of a New Tetrahydroprotoberberine Alkaloid from Corydalis clarkei Berberis alkaloids. XVII. Investigation of the alkaloids of Berberis heteropoda