4-Chloro-5-(difluoromethyl)-2-methyl-3-(trifluoromethoxy)pyridine
5-Cyano-3-hydroxy-4-nitro-2-(trifluoromethoxy)pyridine
5-(Chloromethyl)-3-cyano-4-hydroxy-2-(trifluoromethoxy)pyridine
4-Chloro-3-(difluoromethyl)-5-methyl-2-(trifluoromethoxy)pyridine