反应详情

To a suspension of 1H-indazole-3-carboxamide [90004-04-9](2.00 g, 12.4 mmol) and potassium carbonate (4.12 g, 29.8 mmol) in CH3CN (60 mL) was added tert-butyl bromoacetate (2.20 mL, 14.9 mmol) dropwise at RT, and the resulting mixture was refluxed for 16 h. The mixture was then cooled to RT and filtered, the solid was washed with CH3CN and the filtrate was concentrated under vacuum. The residual oil was used directly in the next step without further purification. MS (LC/MS): 276.0 [M+H]+; tR (HPLC conditions d): 3.22 min.

1. temperaturethe resulting mixture was refluxed for 16 h
2. filtrationfiltered
3. washthe solid was washed with CH3CN
4. concentrationthe filtrate was concentrated under vacuum
5. customThe residual oil was used directly in the next step without further purification
6. custom3.22 min.