Downstream synthetic route of 93319-65-4

93319-65-4 Pyridazin-3-ylmethanamine 22639518, apyridazine compound, is more and more widely used in various fields.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.93319-65-4,Pyridazin-3-ylmethanamine,as a common compound, the synthetic route is as follows.

93319-65-4, General procedure: A solution of 1-isopropyl-6-methyl-4-oxo-5-(3-trifluoromethyl-phenyl)-1,4-dihydro-pyridine-3-carboxylic acid (preparation 3, 65 mg, 0.192 mmol), TBTU (75 mg, 0.232 mmol), N-methylmorpholine (42 muL, 0.383 mmol) in DMF (1 mL) is stirred for 15 min at room temperature. C-(5-Methyl-[1,3,4]oxadiazol-2-yl)-methylamine (24 mg, 0.211 mmol) is added and the reaction mixture is stirred for 18 h at room temperature. The reaction mixture is purified by preparative reversed-phase HPLC (Sunfire, gradient of acetonitrile in water, 0.1% TFA, 60 C.). The following examples are prepared as described for Example 3.1, substituting preparation 3 with preparation 4, substituting N-methylmorpholine with triethylamine and employing the appropriate amines, respectively.

93319-65-4 Pyridazin-3-ylmethanamine 22639518, apyridazine compound, is more and more widely used in various fields.

Reference£º
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; OOST, Thorsten; FIEGEN, Dennis; GNAMM, Christian; HANDSCHUH, Sandra; PETERS, Stefan; ROTH, Gerald Juergen; US2014/57920; (2014); A1;,
Pyridazine – Wikipedia
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