4-​ [6-​ [[7-​ 环戊基-​ 6-​ [(二甲氨基)​ 羰基]​ -​ 7H-​ 吡咯[2,​ 3-​ D]​ 嘧啶-​ 2-​ 基]​ 氨基]​ -​ 3-​ 吡啶基]​ -​ 1-​ 哌嗪羧酸1,1-二甲基乙基酯

4-[6-(7-Cyclopentyl-6-Dimethylcarbamoyl-7H-Pyrrolo[2,3-D]Pyrimidin-2-Ylamino)-Pyridin-3-Yl]-Piperazine-1-Carboxylic Acid Tert-Butyl Ester