InChI=1/C18H18N4O/c1-12(2)22-11-14(8-9-16(22)23)15-10-20-18(19)21-17(15)13-6-4-3-5-7-13/h3-12H,1-2H3,(H2,19,20,21)/f/h19H2 AA6A28E79DF394FE