title: [Studies on the constituents of Corydalis sps. XII. Reaction of dihydroprotoberberine type enamine with formaldehyde (author's transl)].
mesh_terms: D001599:Berberine / Q000031:analogs & derivatives; D001600:Berberine Alkaloids; D005557:Formaldehyde; D008745:Methylation
chemical_list: D001600:Berberine Alkaloids; D001599:Berberine; D005557:Formaldehyde