We sought to develop a DHODH inhibitor that had superior properties to those reported for AML therapy....Cmpd 41 also demonstrated superior in vivo anti-leukemic activity in multiple AML xenograft models as monotherapy and demonstrated synergy with a hypomethylating agent, decitabine in TP53 mutated AML....In summary, we introduce a best in class DHODH inhibitor with a data-driven combination strategy for both AML and MM.