InChI=1/C15H20N4O/c1-2-3-8-20-13-6-4-11(5-7-13)9-12-10-18-15(17)19-14(12)16/h4-7,10H,2-3,8-9H2,1H3,(H4,16,17,18,19)/p+1/fC15H21N4O/h18H,16-17H2/q+1 F20CAA5A28751E6F