tert-Butanol → N-(3-cyclopropyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)-7-(2-(4-isopropylpiperazin-1-yl)ethoxy)imidazo[1,2-a]pyridine-3-carboxamide

Participants

Reaction Steps

A one dram vial was charged with solid potassium tert-butoxide (55 mg, 0.49 mmol), 2-(4-isopropylpiperazin-1-yl)ethanol (0.099 g, 0.57 mmol), and tert-butanol (0.3 mL, 3.4 mmol). The mixture was stirred at ambient temperature for 30 minutes. 7-Fluoro-N-(3-cyclopropyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide (0.034 g, 0.077 mmol) was added in one portion. The mixture was heated at 90° C. with stirring for 16 hours. The mixture was cooled to ambient temperature and diluted with water until a precipitate formed. The precipitate was collected by filtration and dried under high vacuum to give the product (0.019 g). MS (APCI), positive scan, m/z=593.1 (M+H).

Provenance & Evidence