InChI=1/C18H20N4O2/c1-3-6-11(13-7-4-5-8-14(13)23-2)9-12-10-24-17-15(12)16(19)21-18(20)22-17/h4-5,7-10H,3,6H2,1-2H3,(H4,19,20,21,22)/b11-9-/f/h19-20H2 A424A21249FBD9B3