7-环戊基-N,N-二甲基-2-[[5-(1-哌嗪基)-2-吡啶基]氨基]-7H-吡咯并[2,3-d]嘧啶-6-甲酰胺盐酸盐 、
BOC-甘氨酸 在
crude product 、 SiO2 、
methanol-dichloromethane 作用下,
以to give (2-{4-[6-(7-cyclopentyl-6-dimethylcarbamoyl-7H-pyrrolo[2,3-d]pyrimidin-2-ylamino)-pyridin-3-yl]-piperazin-1-yl}-2-oxo-ethyl)-carbamic acid tert-butyl ester which的产率得到(2-{4-[6-(7-cyclopentyl-6-dimethylcarbamoyl-7H-pyrrolo[2,3-d]pyrimidin-2-ylamino)-pyridin-3-yl]-piperazin-1-yl}-2-oxo-ethyl)-carbamic acid tert-butyl ester