InChI=1/C20H20Cl2N2O2/c1-13(24(2)19(26)17-12-20(17,21)22)15-9-6-10-16(11-15)23-18(25)14-7-4-3-5-8-14/h3-11,13,17H,12H2,1-2H3,(H,23,25)/t13-,17+/m1/s1/f/h23H 56208D84FA11D9BA