InChI=1/C18H18N4O2/c1-12-7-15-16(8-13(12)2)22(11-19-15)10-18(24)21-20-9-14-5-3-4-6-17(14)23/h3-9,11,23H,10H2,1-2H3,(H,21,24)/b20-9+/f/h21H EBC868B974BAD626