title: [Isolation and structural elucidation of quaternary tetrahydroberine alkaloids (author's transl)].
mesh_terms: D001600:Berberine Alkaloids / Q000302:isolation & purification*; D055598:Chemical Phenomena; D002621:Chemistry; D008745:Methylation; D010946:Plants, Medicinal / Q000032:analysis*; D013055:Spectrophotometry, Infrared; D013785:Thailand
chemical_list: D001600:Berberine Alkaloids
vernacular_title: Alkaloide aus der thailändischen Menispermaceen-Droge Krung Kha Mao (Cyclea barbata), 6. Mitt. Isolierung und Strukturaufklärung quartärer Tetrahydroprotoberberin-Alkaloide