InChI=1/C14H14Cl2N2O4/c1-7(22-14(21)11-2-3-12(19)18-11)13(20)17-10-5-8(15)4-9(16)6-10/h4-7,11H,2-3H2,1H3,(H,17,20)(H,18,19)/t7-,11+/m1/s1/f/h17-18H	C808EE9CDEA74C6E