InChI=1/C13H17N3O4/c17-10-7-5-9(6-8-10)14-13(18)15-11-3-1-2-4-12(11)16(19)20/h1-4,9-10,17H,5-8H2,(H2,14,15,18)/f/h14-15H ECEF57E6CC922B44