7-cyclopentyl-2-(1',2',3',4',5',6'-hexahydro-[3,4']bipyridinyl-6-ylamino)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide 、
2-溴乙醇 以to give 7-cyclopentyl-2-[1′-(2-hydroxy-ethyl)-1′,2′,3′,4′,5′,6′-hexahydro-[3,4′]bipyridinyl-6-ylamino]-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide (37 mg, 53%)的产率得到7-cyclopentyl-2-[1'-(2-hydroxy-ethyl)-1',2',3',4',5',6'-hexahydro-[3,4']bipyridinyl-6-ylamino]-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide