Cyt387, also called Momelotinib, under the IUPAC name N-(cyanomethyl)-4-(2-((4-(4-morpholinyl)phenyl)amino)-4-pyrimidinyl)benzamide, is an ATP competitive inhibitor of JAK1 (IC50 = 11 nM) and JAK2 (IC50 = 18 nM) with potential antineoplastic activity, which may result result in the induction of apoptosis and a reduction of tumor cell proliferation in JAK1/2-expressing tumor cells.