7-cyclopentyl-2-(5-formyl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide 、
N-羟乙基哌嗪 以gave 7-cyclopentyl-2-{5-[4-(2-hydroxy-ethyl)-piperazin-1-ylmethyl]-pyridin-2-ylamino}-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide as an off white solid (78 mg, 40%) [following SiO2 chromatography, eluting with 0-10% (2M NH3 in MeOH)/DCM]的产率得到7-cyclopentyl-2-{5-[4-(2-hydroxy-ethyl)-piperazin-1-ylmethyl]-pyridin-2-ylamino}-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide