InChI=1/C16H13N3O5/c1-9-15(20)18-12-8-10(6-7-14(12)24-9)17-16(21)11-4-2-3-5-13(11)19(22)23/h2-9H,1H3,(H,17,21)(H,18,20)/t9-/m0/s1/f/h17-18H C3881BC2B7D6270B