title: Cactus alkaloids. XXI. Beta-phenethylamines from Dolichothele sphaerica.
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D002855:Chromatography, Thin Layer; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010627:Phenethylamines / Q000302:isolation & purification*; D010944:Plants / Q000032:analysis*; D013055:Spectrophotometry, Infrared
chemical_list: D000470:Alkaloids; D010627:Phenethylamines