Baricitinib phosphate1187595-84-1100 % similar Baricitinib1187594-09-759 % similar 3-Azetidineacetonitrile, 1-(ethylsulfonyl)-3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]-1919837-50-547 % similar Jakafi1092939-17-732 % similar