Dichloromethane → 3-(cyanomethyl)-3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]cyclobutylmethyl methanesulfonate

Participants

Reaction Steps

To a mixture of 3-(hydroxymethyl)-1-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]cyclobutylacetonitrile (0.122 g, 0.000278 mol) in methylene chloride (2 mL, 0.04 mol) was added triethylamine (0.0775 mL, 0.000556 mol) followed by methanesulfonyl chloride (0.0478 g, 0.000417 mol) at 0° C. The reaction was stirred at rt overnight, quenched with water, extracted with dichloromethane. The organic layers were washed with brine, dried over magnesium sulfate, then evaporated to dryness. The crude mixture was used directly in next step (138 mg, 96.02%). LCMS calculated for C23H33N6O4SSi(M+H)+: 517.2; Found: 517.4.

Provenance & Evidence