InChI=1/C21H17FN2O6/c1-28-18-9-3-13(11-19(18)29-2)17(25)12-30-21(27)16-8-10-20(26)24(23-16)15-6-4-14(22)5-7-15/h3-11H,12H2,1-2H3 FB92E2FE38B8222F