Cesium carbonate → 5-Bromo-3-(5-(4-(2-hydroxy-2-methylpropyl)piperazin-1-yl)pyridin-2-ylamino)-1-methylpyridin-2(1H)-one

Participants

Reaction Conditions

Reaction Steps

A sealed tube equipped with a magnetic stirrer was charged with 5-bromo-1-methyl-3-(5-(piperazin-1-yl)pyridin-2-ylamino)pyridin-2(1H)-one 101j (500 mg, 1.37 mmol), 2,2-dimethyloxirane (990 mg, 13.7 mmol), Cs2CO3 (1.3 g, 4.11 mmol), and CH3CN (15 mL). After three cycles of vacuum/argon flush, the mixture was heated at 110° C. for 15 h. It was then filtered and the filtrate was evaporated in vacuum. Crude 120a thus obtained was used in the next step without further purification (460 mg, 77%). LCMS: [M+H]+ 437.

Provenance & Evidence