InChI=1/C15H20N4O3/c1-10(2)18(7-13(16)20)9-15(22)19-8-14(21)17-11-5-3-4-6-12(11)19/h3-6,10H,7-9H2,1-2H3,(H2,16,20)(H,17,21)/p+1/fC15H21N4O3/h17-18H,16H2/q+1 C304BEAAAB4D9BDE