6-Chloro-4-(difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine
4-Cyano-3-methyl-6-(trifluoromethoxy)pyridine-2-acetic acid
5-Chloro-2-(fluoromethyl)-4-nitro-3-(trifluoromethoxy)pyridine
3-Chloro-2-(difluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine