Hydrochloric Acid → HCID 136375757, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-{[2-(isopropylsulfonyl)phenyl]amino}-2-(methylsulfanyl)-6-oxo-1,6-dihydropyrimidine-5-carboxamide (Preparation Example 294) (200 mg), tert-butyl 2-(aminomethyl)piperidine-1-carboxylate (1.12 g) and NMP (1 mL) was heated at 180° C. for 10 minutes using a microwave reaction system. After cooling, the reaction liquid was diluted with ethyl acetate and washed with water and saturated aqueous sodium chloride. After drying over anhydrous magnesium sulfate, the solvent was distilled off, and the residue was purified by silica gel column chromatography (chloroform:methanol=100:0 to 20:1) to give a white amorphous. To a mixture of the white amorphous, ethyl acetate (10 mL) and ethanol (5 mL), 4M hydrogen chloride in ethyl acetate (5 mL) was added under ice cooling and stirred at room temperature for 4 hours. The precipitated solid was collected by filtration and dried to give 4-{[2-(isopropylsulfonyl)phenyl]amino}-6-oxo-2-[(piperidin-2-ylmethyl)amino]-1,6-dihydropyrimidine-5-carboxamide hydrochloride (126 mg) as a white solid.

Provenance & Evidence