InChI=1S/C19H16ClN5O2/c1-12(16-11-17(27-24-16)14-4-3-5-15(20)10-14)26-19-23-22-18(25(19)2)13-6-8-21-9-7-13/h3-12H,1-2H3/t12-/m1/s1