Pyridine → 7-cyclopentyl-2-(5-hydroxymethyl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carbonitrile

Participants

Reaction Steps

To a stirred solution of 2-[5-(tert-butyl-dimethyl-silanyloxymethyl)-pyridin-2-ylamino]-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidine-6-carbonitrile in THF (2.0 mL) is added HF.pyridine (0.080 mL) at 0° C. The reaction mixture stirred at room temperature for 16 h before it is diluted with ethyl acetate, ished with saturated NaHCO3 solution, dried (MgSO4), filtered and concentrated. Trituration with diethyl ether gave 7-cyclopentyl-2-(5-hydroxymethyl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carbonitrile, 68 mg, 53% yield (over 2 steps). MS (ESI) m/z 335.0 (M+H)+ (method A).

Provenance & Evidence