2-Nitro-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-5-sulfonyl chloride
3-Nitro-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-4-sulfonyl chloride
6-Nitro-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-sulfonyl chloride
5-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine