反应详情

Using ethyl 1,4-dimethyl-1H-pyrazole-5-carboxylate (565 mg, 3.36 mmol), 1N aqueous sodium hydroxide solution (4 mL, 4 mmol) and ethanol (4 mL), and by a reaction in the same manner as in Reference Example 20, the title compound (261 mg, 55%) was obtained as colorless crystals.

1. customby a reaction in the same manner as in Reference Example 20