Ethanol → 1-{4-[({4-[2-(difluoromethyl)-1H-benzimidazol-1-yl]-6-(morpholin-4-yl)pyrimidin-2-yl}amino)methyl]piperidin-1-yl}-3-fluoropropan-2-ol

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To a mixture of 4-[2-(difluoromethyl)-1H-benzimidazol-1-yl]-6-morpholin-4-yl-N-(piperidin-4-ylmethyl)pyrimidin-2-amine (100 mg) and ethanol (2 mL) were added 2-(fluoromethyl)oxirane (19 μL) and N,N-diisopropyl ethylamine (79 μL), and the mixture was stirred in a microwave reactor at 120° C. for 1 hour. To the reaction mixture was added water, followed by extraction with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and then the residue was purified by amino silica gel column chromatography (ethyl acetate:hexane) to obtain 1-{4-[({4-[2-(difluoromethyl)-1H-benzimidazol-1-yl]-6-(morpholin-4-yl)pyrimidin-2-yl}amino)methyl]piperidin-1-yl}-3-fluoropropan-2-ol (81 mg) as a white powder.

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