Phenyl chloroformate → Phenyl N-[1-[4-[(3S)-3-methylmorpholin-4-yl]-6-(methylsulfonylmethyl)pyrimidin-2-yl]-4-piperidyl]carbamate

Participants

Reaction Steps

1-[4-[(3S)-3-methylmorpholin-4-yl]-6-(methylsulfonylmethyl)pyrimidin-2-yl]piperidin-4-amine (500 mg, 1.35 mmol) was dissolved in dioxane (10 mL). Sodium bicarbonate (171 mg, 1.50 mmol) was added. Then phenyl chloroformate (0.171 mL, 1.35 mmol) was added dropwise over 2 minutes. The slurry was stirred at RT for 3 hours. Phenyl chloroformate (0.021 mL, 0.27 mmol) and sodium bicarbonate (21 mg, 0.12 mmol) were added. Stirring at room temp was continued for 1 hour and the reaction mixture evaporated to dryness and partitioned between water (10 mL) and ethyl acetate (10 mL). The water was extracted with a second portion of ethyl acetate (10 mL). The combined organics were dried over magnesium sulfate and evaporated to give the desired material as a foam (701 mg).

Provenance & Evidence