Formic Acid → N-[5-[2-(3-methoxyphenyl)ethyl]-1H-pyrazol-3-yl]-4-(4-methylsulfonylpiperazin-1-yl)benzamide

Participants

Reaction Steps

A solution of formic acid (5 mL, 130.36 mmol) and N-(1-tert-butyl-3-(3-methoxyphenethyl)-1H-pyrazol-5-yl)-4-(4-(methylsulfonyl)piperazin-1-yl)benzamide (255 mg, 0.47 mmol) was stirred at 85° C. for 2 h. The reaction mixture was cooled and evaporated to dryness. The crude product was purified by reverse phase prep. HPLC (basic) using a 36-46% gradient of acetonitrile in water, containing 1% 0.880 ammonia. The clean fractions were combined and evaporated to afford the title compound (43.0 mg, 18.82%) as a white solid; 1H NMR (499.9 MHz, DMSOd6+CD3CO2D) δ 2.87 (3H, s), 2.88-2.92 (4H, m), 3.28-3.32 (4H, m), 3.39-3.42 (4H, m), 3.73 (3H, s), 6.30 (1H, s), 6.71-6.74 (1H, m), 6.77 (1H, s0, 6.80 (2H, d), 6.94-6.98 (2H, m), 7.16 (1H, t), 7.85-7.89 (2H, m).

Provenance & Evidence