InChI=1/C15H20N4/c1-2-19(11-13-6-4-3-5-7-13)12-14-8-9-17-15(10-14)18-16/h3-10H,2,11-12,16H2,1H3,(H,17,18)/p+1/fC15H21N4/h18-19H/q+1 DCFAB0D8432A3DA8