Aluminium lithium hydride → (S)-tert-butyl 4-(1-(4-chlorophenyl)-3-hydroxypropylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate

Participants

Reaction Conditions

Reaction Steps

LiAlH4 (2.280 mL, 2.28 mmol) was added dropwise to (S)-methyl 3-(4-(tert-butoxycarbonylamino)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamido)-3-(4-chlorophenyl)propanoate (Intermediate 21) (1.27 g, 2.28 mmol) in THF (70 mL) cooled to 0° C. under nitrogen. The resulting solution was stirred at 20° C. for 1 hour. The reaction mixture was quenched with sodium hydroxide (2M) (2 mL) and water (1 mL). The solution was filtered and was diluted with EtOAc (200 mL), and washed sequentially with water (100 mL), water (100 mL), and saturated brine (100 mL). The organic layer was dried over MgSO4, filtered and evaporated to afford (S)-tert-butyl 4-(1-(4-chlorophenyl)-3-hydroxypropylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (1.04 g, 86%) as a white solid. M/z (ESI+) (M+H)+=529; HPLC tR=2.00 min.

Provenance & Evidence