反应详情

(3-Trifluoromethyl-4,5,6,7-tetrahydroindazol-1-yl)-acetic acid tert-butyl ester was dissolved in a solution of DCM (30 mL) and TFA (30 mL), and the resulting mixture stirred at RT for 30 min, before concentration in vacuo to afford the title compound (4.50 g). This was used directly in the next step without any further purification.