反应详情

The same operation as in Example (217a) was performed using tert-butyl (1R,5R)-2,6-diazabicyclo[3.2.0]heptane-2-carboxylate obtained in Example (236a) (150 mg, 0.76 mmol), ethyl 2-bromo-4-methylthiazole-5-carboxylate (189 mg, 0.76 mmol) and diisopropylethylamine (0.26 mL, 1.51 mmol), to obtain 278 mg of the title compound as a yellow oily substance (100%).