A small-molecule pan-Aurora kinase inhibitor with potential antineoplastic activity. Aurora kinase inhibitor TTP607 selectively binds to and inhibits Aurora kinases A, B and C, which may result in the disruption of the assembly of the mitotic spindle apparatus, disruption of chromosome segregation, and inhibition of cellular division and proliferation in Aurora kinase-overexpressing tumor cells. Aurora kinases A, B and C, are serine/threonine kinases that play essential roles in mitotic checkpoint control and are overexpressed by a wide variety of tumor cell types.