InChI=1/C17H11F3N2O3S/c1-9(23)21-16-22-15(24)14(26-16)8-12-5-6-13(25-12)10-3-2-4-11(7-10)17(18,19)20/h2-8H,1H3,(H,21,22,23,24)/b14-8-/f/h21H F81BA282B8B7343F