InChI=1/C11H20N4O4/c1-11(2,14-10(18)13-3)9(17)15-4-5-19-7(6-15)8(12)16/h7H,4-6H2,1-3H3,(H2,12,16)(H2,13,14,18)/t7-/m0/s1/f/h13-14H,12H2 9FC0FFEAEA5E5CFD