rac-tert-butyl N-((1R,3S)-3-aminocyclohexyl)carbamate → tert-butyl N-[(1R,3S)-3-[[2-[5-chloro-1-(p-tolylsulfonyl)pyrrolo[2,3-b]pyridin-3-yl]-5-fluoro-pyrimidin-4-yl]amino]cyclohexyl]carbamate

Participants

Reaction Steps

tert-Butyl N-[(1R,3S)-3-aminocyclohexyl]carbamate, 20a, (0.15 g, 0.70 mmol) and 5-chloro-3-(5-fluoro-4-methylsulfinyl-pyrimidin-2-yl)-1-(p-tolylsulfonyl)pyrrolo[2,3-b]pyridine, 1a, (0.49 g, 1.05 mmol) were dissolved in THF (30 mL) and allowed to stir at room temperature overnight. The solvent was evaporated under reduced pressure and the residue was purified by two rounds of silica gel chromatography—first with (0%-10% MeOH/CH2Cl2) second with (10%-50% EtOAc/hexanes) to provide tert-butyl N-[(1R,3S)-3-[[2-[5-chloro-1-(p-tolylsulfonyl)pyrrolo[2,3-b]pyridin-3-yl]-5-fluoro-pyrimidin-4-yl]amino]cyclohexyl]carbamate (20b) (330 mg, 38%).

Provenance & Evidence