InChI=1/C15H10Cl2N2O2/c1-8-10(15(20)19-18-8)7-9-5-6-13(21-9)14-11(16)3-2-4-12(14)17/h2-7H,1H3,(H,19,20)/b10-7-/f/h19H FD3110DE80543250