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