FEN1-IN-5 (compound 12A) is a potent inhibitor of Flap endonuclease-1 (FEN1, IC50=12 nM), involving in DNA repair.
References:
[1]. Wadhwa P, et al. QSAR and Docking Studies of N-droxy Urea Derivatives as Flap Endonuclease-1 Inhibitors. Curr Comput Aided Drug Des. 2015;11(4):346-52.