InChI=1/C15H22N4O2/c1-9(2)8-19-13-11(14(20)18(3)15(19)21)16-12(17-13)10-6-4-5-7-10/h9-10H,4-8H2,1-3H3,(H,16,17)/f/h16H CA2BDFC71C883557