Methyl 3-chloro-2-cyano-6-(trifluoromethoxy)pyridine-4-carboxylate
3-Chloro-5-(chloromethyl)-2-cyano-6-(trifluoromethoxy)pyridine
2-Chloro-3-(chloromethyl)-4-methoxy-5-(trifluoromethoxy)pyridine
3-Chloro-2-(difluoromethyl)-5-methoxy-6-(trifluoromethoxy)pyridine