InChI=1/C15H20N4O2/c1-10(9-16)14(20)17-13-11(2)18(3)19(15(13)21)12-7-5-4-6-8-12/h4-8,10H,9,16H2,1-3H3,(H,17,20)/p+1/t10-/m0/s1/fC15H21N4O2/h16-17H/q+1 5200EC662BBC7558