InChI=1S/C17H20Cl2N2O2/c18-12-7-13(19)9-14(8-12)20-17(23)11-6-16(22)21(10-11)15-4-2-1-3-5-15/h7-9,11,15H,1-6,10H2,(H,20,23)/t11-/m0/s1