InChI=1/C11H10Cl2N4O2/c1-6(10(18)16-11-14-5-15-17-11)19-9-3-7(12)2-8(13)4-9/h2-6H,1H3,(H2,14,15,16,17,18)/t6-/m1/s1/f/h17-18H B14A247E8E0F74E1