title: Amezinium. Synthesis and radioactive labelling.
abstract: The synthesis of the novel pharmacologically active substance 4-amino-6-methoxy-1-phenyl-pyridazinium methyl sulfate (ameziniummetilsulfate, LU 1631, Regulton) and the proof of its structure are described. In addition the present paper deals with the microsynthesis of samples which are labelled at a definite site with 14C or 3H, respectively, and which are needed for the examination of its metabolism and the pharmacokinetics.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002855:Chromatography, Thin Layer; D007553:Isotope Labeling; D009682:Magnetic Resonance Spectroscopy; D011724:Pyridazines / Q000138:chemical synthesis*; D013055:Spectrophotometry, Infrared
chemical_list: D011724:Pyridazines; C027784:amezinium