InChI=1/C18H18N4/c1-12-13-7-3-5-9-15(13)17(11-21-22-18(19)20-2)16-10-6-4-8-14(12)16/h3-11H,1-2H3,(H3,19,20,22)/p+1/b21-11-/fC18H19N4/h20,22H,19H2/q+1 443CF8083A7DB8F8