反应详情

To a solution of tert-butyl 2-(3-acetyl-1H-indazol-1-yl)acetate (4 g, 12.4 mmol) in CH2Cl2 (45 mL) was added TFA (15 mL, 195.0 mmol), and the reaction mixture was stirred at RT overnight. Then was then diluted with CH2Cl2 and MeOH, and volatiles were evaporated under reduced pressure to afford the title compound: MS: 219 [M+H]+; tR (HPLC conditions d): 2.78 min.

1. customwere evaporated under reduced pressure