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