反应详情

The process is performed as described in Example 1 (step 1.4.). Starting with 2.20 g (5.91 mmol) of 2-(ethyloxy)-2-oxoethyl 4-(5-bromo-2-pyridyl)-1-piperazinecarboxylate, obtained in step 3.3. of Example 3, and 14.80 ml (29.55 mmol) of a solution of methylamine (2M) in tetrahydrofuran, and after crystallization from diisopropyl ether, 1.974 g of pure product are obtained in the form of a white solid.

1. customobtained in step 3.3
2. customare obtained in the form of a white solid