title: Studies in aporphine alkaloids. 3. Isolation and synthesis of alkaloids of Xylopia brasiliensis St. Hil.
mesh_terms: D000700:Analgesics; D001060:Aporphines / Q000138:chemical synthesis* / Q000302:isolation & purification; D001600:Berberine Alkaloids / Q000138:chemical synthesis* / Q000302:isolation & purification; D006993:Hypnotics and Sedatives; D013057:Spectrum Analysis
chemical_list: D000700:Analgesics; D001060:Aporphines; D001600:Berberine Alkaloids; D006993:Hypnotics and Sedatives