InChI=1/C15H18N4O2/c1-3-4-10-5-9(7-12(21-2)13(10)20)6-11-8-18-15(17)19-14(11)16/h3,5,7-8,20H,1,4,6H2,2H3,(H4,16,17,18,19)/p+1/fC15H19N4O2/h18H,16-17H2/q+1 FF8FBC2A2D02BE35