(4-(1-(2-CYANO-1-CYCLOPENTYLETHYL)-1H-PYRAZOL-4-YL)-7H-PYRROLO(2,3-D)PYRIMIDIN-7-YL)METHYL 2,2-DIMETHYLPROPANOATE
(4-(1-(2-cyano-1-cyclopentylethyl)-1h-pyrazol-4-yl)-7h-pyrrolo(2,3-d)pyrimidin-7-yl)methyl 2,2-dimethylpropanoate