2-Chloro-3-nitro-5-(trifluoromethoxy)pyridine-4-acetic acid
2-Cyano-3-fluoro-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-Chloro-6-(difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine
2-Cyano-3-fluoro-4-(trifluoromethoxy)pyridine-5-sulfonyl chloride