InChI=1/C13H15N3O4/c1-8-2-3-9(6-11(8)16(19)20)13(18)15-10-4-5-12(17)14-7-10/h2-3,6,10H,4-5,7H2,1H3,(H,14,17)(H,15,18)/t10-/m0/s1/f/h14-15H 7F56907AD2F0FB97