反应详情

Combined 6-(4-(4-cyanophenyl)-5-hydroxy-1H-pyrazol-1-yl)nicotinic acid (29 mg, 0.095 mmol), EDCI (27.2 mg, 0.142 mmol), HOBT (19.2 mg, 0.142 mmol) in DMF (1 mL) and added N,N-diisopropyl ethylamine (66.0 μL, 0.379 mmol). Then (R)-3-aminopentanenitrile (13.9 mg, 0.142 mmol) was added and the reaction was stirred at room temperature for 16 hours. The reaction mixture was purified by preparative HPLC (SunFire™ C18, 5 μm, ID 30 mm×75 mm) using a gradient of 40-65% ACN (with 0.035% TFA) in water (with 0.05% TFA) to give the title compound (16.2 mg, 44%). 1H NMR (400 MHz, DMSO-d6) δ ppm 0.93 (t, J=7.33 Hz, 3H) 1.67 (quin, J=7.20 Hz, 2H) 2.70-2.95 (m, 2H) 4.05-4.22 (m, 1H) 7.80 (d, J=8.34 Hz, 2H) 8.15 (br. s., 2H) 8.41-8.86 (m, 4H) 8.94 (s, 1H). MS m/z [M+H]+ 387.2.

1. customThe reaction mixture was purified by preparative HPLC (SunFire™ C18, 5 μm, ID 30 mm×75 mm)