InChI=1/C18H25N5O2/c1-12(2)15-11-16(22-21-15)18(25)20-14-7-5-13(6-8-14)17(24)19-9-10-23(3)4/h5-8,11-12H,9-10H2,1-4H3,(H,19,24)(H,20,25)(H,21,22)/p+1/fC18H26N5O2/h19-20,22-23H/q+1 556B254F72B8A9E7