反应详情

Trans-4-(3,5-diethyl-pyrazol-1-ylmethyl)-cyclohexylamine hydrochloride (Intermediate B) (65 mg, 0.238 mmol) was placed in a flask with DCM (5 ml) and triethylamine (72 mg, 0.714 mmol). 5-Chloro-2-methylnicotinoyl chloride (Intermediate C) (54 mg, 0.238 mmol) was added portionwise. After addition of the acid chloride, the reaction mixture was stirred at RT for 1 hour and partitioned between DCM and sat. NaHCO3. The organic phase was passed through a phase separator and the solvent was removed in vacuo. The crude product was triturated in EtOAc:iso-hexane—1:1, filtered and dried to afford the title compound; 1H NMR (d6-DMSO, 400 MHz) δ 8.52 (1H, d), 8.39 (1H, d), 7.79 (1H, d), 5.82 (1H, s), 3.76 (2H, d), 3.67 (1H, m), 2.57 (2H, q), 2.47 (5H, m), 1.89 (2H, m), 1.72 (1H, m), 1.57 (2H, m), 1.23 (10H, m); LC-MS Rt 2.35 mins, [M+H]+ 389; Method LowpH_v002.

1. custompartitioned between DCM and sat. NaHCO3
2. customthe solvent was removed in vacuo
3. customThe crude product was triturated in EtOAc
4. filtrationiso-hexane—1:1, filtered
5. customdried