InChI=1/C16H15N3O4/c1-19-8-10-5-9(7-17-15(10)18-16(19)22)14(21)12-6-11(23-2)3-4-13(12)20/h3-7,20H,8H2,1-2H3,(H,17,18,22)/f/h18H D468B16272BDF747