InChI=1S/C17H16Cl2N2O4/c1-17(2,15(22)23)25-12-6-3-10(4-7-12)20-16(24)21-11-5-8-13(18)14(19)9-11/h3-9H,1-2H3,(H,22,23)(H2,20,21,24)