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