InChI=1S/C20H20FN3O4/c1-10(25)19(22)16(26)6-3-11-13(21)4-5-14-18(11)12(20(27)24-14)9-15-17(28-2)7-8-23-15/h4-5,7-10,16,19,23,25-26H,22H2,1-2H3,(H,24,27)/b12-9-/t10-,16-,19+/m1/s1