6-Chloro-4-(difluoromethyl)-2-fluoro-3-(trifluoromethoxy)pyridine
4-Chloro-2-(fluoromethyl)-6-methyl-3-(trifluoromethoxy)pyridine
4-Chloro-3-(fluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine
4-Chloro-2-(fluoromethyl)-3-methyl-6-(trifluoromethoxy)pyridine