反应详情

Operations similar to Production Example 1-(2) were conducted using 3-bromo-2-butanone and 2-amino-5-nitropyridine. The solid whereupon obtained was suspended in ethyl acetate, and washed with saturated aqueous sodium hydrogencarbonate. After concentration under reduced pressure, the residue was recrystallized from ethanol to provide the title compound as yellow crystals.

1. customThe solid whereupon obtained
2. washwashed with saturated aqueous sodium hydrogencarbonate
3. concentrationAfter concentration under reduced pressure
4. customthe residue was recrystallized from ethanol