1-(4,5,6,7-tetrafluoro-3-methylindol-1-yl)ethanone

4,5,6,7-tetrafluoro-3-methyl-1-(4-methylphenyl)sulfonylindole

4,5,6,7-tetrafluoro-3-(2-nitroethenyl)-1H-indole

1-tosyl-3-acetoxymethyl-4,5,6,7-tetrafluoroindole