InChI=1/C11H16N4O4/c16-3-11(4-17,5-18)15-2-7-1-12-9-8(7)13-6-14-10(9)19/h1,6,12,15-18H,2-5H2,(H,13,14,19)/f/h13H C6B8B943A788633D