2-(3-(4-(6-Amino-5-formylpyrimidin-4-yl)-1H-pyrazol-1-yl)-1-(ethylsulfonyl)azetidin-3-yl)acetonitrile ; Baricitinib Aldehyde;2-(1-(Ethylsulfonyl)-3-(4-(7-(hydroxymethyl)-7H-pyrrolo[3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl)azetidin-3-yl)acetonitrile