InChI=1/C15H20N4O/c1-11(20)17-13-5-6-14-12(10-13)4-7-15(18-14)16-8-9-19(2)3/h4-7,10H,8-9H2,1-3H3,(H,16,18)(H,17,20)/p+1/fC15H21N4O/h16-17,19H/q+1 4A0F2A3FB32C8911