反应详情

The same operation as in Example (217c) was performed using ethyl 2-(3-aminoazetidin-1-yl)-4-methyl-1,3-thiazole-5-carboxylate obtained in Example (218b) (144 mg, 0.60 mmol), 4-chloro-5-ethyl-1H-imidazole-2-carboxylic acid obtained in Example (1d) (104 mg, 0.60 mmol), WSC hydrochloride (343 mg, 1.79 mmol), 1-hydroxybenzotriazole (81 mg, 0.60 mmol) and N-methylmorpholine (0.13 mL, 1.19 mmol), to obtain 151 mg of the title compound as a white solid (64%).