InChI=1/C13H14N4O3/c1-13(2)5-11(13)16-9-4-8-7(3-10(9)17(19)20)12(18)15-6-14-8/h3-4,6,11,16H,5H2,1-2H3,(H,14,15,18)/t11-/m1/s1/f/h15H FF33D578BA3AD1E8