InChI=1/C18H26N4O2/c1-4-11-19-17(23)15-20-18(24)22(14-13-21(2)3)12-10-16-8-6-5-7-9-16/h1,5-9H,10-15H2,2-3H3,(H,19,23)(H,20,24)/p+1/fC18H27N4O2/h19-21H/q+1 65D4944B93368FD2