InChI=1S/C15H19Cl2N3O/c16-10-5-6-12-15(14(10)17)19-9-20(12)8-2-3-11-13(21)4-1-7-18-11/h5-6,9,11,13,18,21H,1-4,7-8H2/t11-,13-/m0/s1