反应详情

A mixture of 2-((trans-3-(3-cyclopropyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyrazin-1-yl)cyclobutyl)amino)thiazole-5-carboxylic acid, (EXAMPLE 149), (0.070 g, 0.188 mmol), (benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate (0.147 g, 0.282 mmol), diisopropylethylamine (0.049 ml, 0.282 mmol), and 1-amino-1-cyclopropanecarbonitrile hydrochloride (0.033 g, 0.282 mmol) in DCM (5 mL) was stirred at room temperature for 12 hours. Purification of the reaction mixture using silica chromatography with ISCO eluting with 0-80% EtOAc/hexanes gave the title compound N-(1-cyanocyclopropyl)-2-((trans-3-(3-cyclopropyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyrazin-1-yl)cyclobutyl)amino)thiazole-5-carboxamide (0.060 g, 0.137 mmol, 73.1% yield). m/z: 437 (M+1); 1H NMR (400 MHz, DMSO-d6) δ: ppm 8.78 (s, 1 H) 8.32 (d, J=6.65 Hz, 1 H) 7.93-8.05 (m, 2 H) 7.40 (s, 1 H) 5.18 (quin, J=8.51 Hz, 1 H) 4.31-4.53 (m, 1 H) 3.21-3.41 (m, 2 H) 2.88-3.05 (m, 1 H) 2.29-2.44 (m, 2 H) 1.44-1.60 (m, 2 H) 1.23-1.35 (m, 2 H) 0.93-1.10 (m, 4 H).

1. customPurification of the reaction mixture
2. washeluting with 0-80% EtOAc/hexanes