InChI=1S/C21H19Cl2N5O2/c1-13(21-17(22)10-24-11-18(21)23)30-15-3-5-20-16(8-15)19(26-27-20)4-2-14-9-25-28(12-14)6-7-29/h2-5,8-13,29H,6-7H2,1H3,(H,26,27)/b4-2+/t13-/m1/s1