5-Chloro-4-cyano-2-iodo-3-(trifluoromethoxy)pyridine
2-Bromo-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Chloro-4-cyano-5-iodo-2-(trifluoromethoxy)pyridine
2-Bromo-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxylic acid