Hydroxyamine hydrochloride → (S)-3-(2-(5-chloro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-fluoro-pyrimidin-4-ylamino)cyclohexanone oxime

Participants

Reaction Steps

To solution of (3S)-3-[[2-[5-chloro-1-(p-tolylsulfonyl)pyrrolo[2,3-b]pyridin-3-yl]-5-fluoro-pyrimidin-4-yl]amino]cyclohexanone (0.41 g, 0.81 mmol) in EtOH (8.2 mL) was added hydroxylamine hydrochloride (0.11 g, 1.61 mmol). The reaction mixture was stirred at room temperature overnight. Then the mixture was warmed to 70° C. for 15 min. The reaction mixture was concentrated in vacuo, suspended in EtOAc-DCM, washed with half saturated brine (2×) and filtered through a SiO2 plug. The resulting residue was azeotroped with CH3CN (2×) to provide an off white powder which was used without further purification.

Provenance & Evidence