Diisopropylethylamine → 2-((R)-1-hydroxy-3-methylbutan-2-ylamino)-4-(5-methyl-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidine-5-carbonitrile

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A mixture of 4-(5-methyl-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-(methylsulfonyl)pyrimidine-5-carbonitrile (120 mg, 0.257 mmol), (R)-(−)-2-amino-3-methyl-1-butanol (57 μl, 0.515 mmol) and diisopropylethylamine (90 μl, 0.515 mmol) in THF (4 mL) was heated at reflux for 1 hour. The reaction mixture was concentrated in vacuo and the residue was purified on silica gel by flash column chromatography to give the title compound as a colourless glassy solid (97 mg, 77% yield).

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