InChI=1/C14H16Cl2N2O4/c1-14(2,3)18-13(21)17-10(19)7-22-12(20)11-8(15)5-4-6-9(11)16/h4-6H,7H2,1-3H3,(H2,17,18,19,21)/f/h17-18H 439BBBE6C9262F0D