InChI=1/C15H18N4O2/c1-9(20)19-7-5-10(6-8-19)15-17-12-4-2-3-11(14(16)21)13(12)18-15/h2-4,10H,5-8H2,1H3,(H2,16,21)(H,17,18)/f/h17H,16H2 D6378CA07F5C1DD4