5-Bromo-3-(chloromethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine
6-Chloro-4-(chloromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine
3-Chloro-4-cyano-2-nitro-5-(trifluoromethoxy)pyridine
2-Chloro-4-(chloromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine