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