c-Fms-IN-6 is a potent inhibitor of c-FMS (IC50 ≤10 nM for unphosphorylated c-FMS) and also weakly inhibits unphosphorylated c-KIT and PDGFR (IC50: > 1 μM).
c-Fms-IN-10 is the derivative of thieno [3,2-d] pyrimidine, a kinase inhibitor of FMS (Colony-stimulating factor-1 receptor, CSF-1R; IC50: 2 nM) with anti-tumor activity.