Patent ID: 7834022

Claim:
A compound selected from: 3-(4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl)-3-(3-hydroxycyclopentyl) propanenitrile; 3-(4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl)-3-(2-hydroxycyclopentyl) propanenitrile; and 3-(4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-I-yl)-3-(3-oxocyclopentyl) propanenitrile, or a pharmaceutically acceptable salt thereof; which is substantially isolated.