Diisopropylethylamine → HCID 66851674, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-(3-chlorophenyl)-3-methyl-1H-pyrazol-4-amine (113.3 mg, 0.546 mmol), pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (109.5 mg, 0.6712 mmol), 7-azabenzotriazol-1-yloxy-tris-(pyrrolidino)phosphonium hexafluorophosphate (338.2 mg, 0.652 mmol), N,N-diisopropylethylamine (0.30 mL, 1.7 mmol), and 4-dimethylaminopyridine (19.1 mg, 0.156 mmol) in 8.0 mL N,N-dimethylformamide was stirred at 50° C. for 15 hours. The reaction mixture was partitioned between ethyl acetate and water, and the organic portion washed with brine, dried over magnesium sulfate, and concentrated. The crude product was purified by reverse phase HPLC and lyophilized to give 86.9 mg (45%) of N-(3-(3-chlorophenyl)-5-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide. LCMS (ESI) m+H=353.0; 1H NMR (400 MHz, DMSO-d6) δ: 12.90 (s, 1H), 9.37 (d, J=7.0, 1H), 9.30 (s, 1H), 8.86 (dd, J=4.1, 1.3, 1H), 8.69 (s, 1H), 7.80 (d, J=12.1, 1H), 7.72 (d, J=7.6, 1H), 7.37 (t, J=7.8, 1H), 7.32 (dd, J=6.9, 4.4, 2H), 2.18 (s, 3H).

Provenance & Evidence