反应详情

To a solution of 2-amino-4-methylthiazole-5-carboxylic acid benzylamide (0.47 g, 1.88 mmol), and N-methylmorpholine (0.23 mL, 2.08 mmol) in N,N-dimethylformamide (20 mL) at 0° C. was added (benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (0.42 g, 2.09 mmol) and 4-pyrazol-1-ylmethyl-benzoic acid (0.42 g, 2.09 mmol). The resultant solution was allowed to warm to ambient temperature over 18 h, and concentrated in vacuo. The crude product was purified by flash column chromatography eluting with methanol/dichloromethane (0/100 to 30/70) to afford the title compound (1.11 g); MS (ES+) m/z 432 (M+1).

1. concentrationconcentrated in vacuo
2. customThe crude product was purified by flash column chromatography
3. washeluting with methanol/dichloromethane (0/100 to 30/70)