InChI=1/C18H20N4O2/c1-24-14-4-2-3-12(7-14)15-8-22(13-5-11(6-13)9-23)18-16(15)17(19)20-10-21-18/h2-4,7-8,10-11,13,23H,5-6,9H2,1H3,(H2,19,20,21)/f/h19H2 FACB61FE8FFD30E0