2-氯-7-环戊基-N,N-二甲基-7H-吡咯并[2,3-d]嘧啶-6-甲酰胺 、 2-(6'-amino-3,4,5,6-tetrahydro-2H-[1,3']bipyridinyl-4-yl)-ethanol 以to give 7-cyclopentyl-2-[4-(2-hydroxy-ethyl)-3,4,5,6-tetrahydro-2H-[1,3′]bipyridinyl-6′-ylamino]-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide (80 mg, 93%)的产率得到7-cyclopentyl-2-[4-(2-hydroxy-ethyl)-3,4,5,6-tetrahydro-2H-[1,3']bipyridinyl-6'-ylamino]-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide