InChI=1/C18H20N4O2/c1-10(2)13(12-6-4-5-7-14(12)23-3)8-11-9-24-17-15(11)16(19)21-18(20)22-17/h4-10H,1-3H3,(H4,19,20,21,22)/p+1/b13-8-/fC18H21N4O2/h22H,19-20H2/q+1 F2C8777A623DC7E4