InChI=1/C15H20N4O/c16-9-2-1-3-15(20)17-11-12-4-6-13(7-5-12)14-8-10-18-19-14/h4-8,10H,1-3,9,11,16H2,(H,17,20)(H,18,19)/p+1/fC15H21N4O/h16-17,19H/q+1 22F4ED24B7168941