InChI=1/C22H18Cl2N2O3/c1-13-8-9-14(2)17(12-13)25-21(27)20(15-6-4-3-5-7-15)29-22(28)19-16(23)10-11-18(24)26-19/h3-12,20H,1-2H3,(H,25,27)/t20-/m1/s1/f/h25H 0EDDA91F8357B18A