InChI=1/C14H16N4O3/c1-8(2)5-10-11(16-7-17-13(10)20)4-3-9-6-15-14(21)18-12(9)19/h3-4,6-8H,5H2,1-2H3,(H,16,17,20)(H2,15,18,19,21)/b4-3+/f/h15,17-18H 20A40ABBD248174C