InChI=1/C16H17N3O4/c20-10-13-4-3-12(22-13)9-19-6-5-11(8-19)15-17-18-16(23-15)14-2-1-7-21-14/h1-4,7,11,20H,5-6,8-10H2/t11-/m0/s1 347DA12BB9FD78F6