InChI=1/C18H24N4O/c1-13(2)16-11-17(23)21-18(20-16)19-15-7-5-14(6-8-15)12-22-9-3-4-10-22/h5-8,11,13H,3-4,9-10,12H2,1-2H3,(H2,19,20,21,23)/p+1/fC18H25N4O/h19,21-22H/q+1 0948BE162ED2E3B6