InChI=1/C21H20Cl2N4O/c1-13-4-6-14(7-5-13)18-12-19(16-9-8-15(22)11-17(16)23)27-21(24-18)25-20(26-27)3-2-10-28/h4-9,11,19,28H,2-3,10,12H2,1H3/t19-/m0/s1 835D73356F5E3B96