N-(tert-butoxycarbonyl)glycine → (2-{4-[6-(7-cyclopentyl-6-dimethylcarbamoyl-7H-pyrrolo[2,3-d]pyrimidin-2-ylamino)-pyridin-3-yl]-piperazin-1-yl}-2-oxo-ethyl)-carbamic acid tert-butyl ester

Participants

Reaction Steps

By repeating procedures described in Example 88, 7-cyclopentyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide hydrochloride (150 mg, 0.318 mmol), N—BOC-glycine (56 mg, 0.318 mmol) gave a crude product which is purified by SiO2 chromatography, eluting with 0-7% methanol/dichloromethane to give (2-{4-[6-(7-cyclopentyl-6-dimethylcarbamoyl-7H-pyrrolo[2,3-d]pyrimidin-2-ylamino)-pyridin-3-yl]-piperazin-1-yl}-2-oxo-ethyl)-carbamic acid tert-butyl ester which is used directly in the next step.

Provenance & Evidence