InChI=1/C18H26N4O2/c1-5-10-22(11-6-2)18(24)19-13-15-8-7-9-16(12-15)20-17(23)14-21(3)4/h5-9,12H,1-2,10-11,13-14H2,3-4H3,(H,19,24)(H,20,23)/p+1/fC18H27N4O2/h19-21H/q+1 227F28C0A0363B29