InChI=1/C18H20N4O2/c1-12-18(24)14(13(11-23)9-20-12)10-19-8-4-7-17-21-15-5-2-3-6-16(15)22-17/h2-3,5-6,9-10,23-24H,4,7-8,11H2,1H3,(H,21,22)/p+1/b19-10-/fC18H21N4O2/h19,21H/q+1 A7E19C12DD0C409A