InChI=1/C16H14N2O4/c1-21-12-4-2-3-10-9(12)5-6-11-13(10)22-8-7-16(11)14(19)17-15(20)18-16/h2-6H,7-8H2,1H3,(H2,17,18,19,20)/t16-/m1/s1/f/h17-18H	428A7541E828A110