7-cyclopentyl-2-(5-formyl-pyridin-2-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide 、
1-乙酰哌嗪 以gave 2-[5-(4-acetyl-piperazin-1-ylmethyl)-pyridin-2-ylamino]-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide as an off white solid (96 mg, 37%) [following SiO2 chromatography, eluting with 0-10% (2M NH3 in MeOH)/dichloromethane]的产率得到2-[5-(4-acetyl-piperazin-1-ylmethyl)-pyridin-2-ylamino]-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide