InChI=1/C14H20N4O2/c1-3-17-12-10(13(19)18(4-2)14(17)20)15-11(16-12)9-7-5-6-8-9/h9H,3-8H2,1-2H3,(H,15,16)/f/h15H E82EB32CC384D1E5