InChI=1S/C23H22Cl2N2O3/c1-12(28)27-17-5-4-6-18(29)21(17)26-16-10-23(2,3)11-19(30)20(16)22(27)14-8-7-13(24)9-15(14)25/h4-9,22,26,29H,10-11H2,1-3H3/t22-/m0/s1