6-Hydroxy-2-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-(Difluoromethyl)-6-hydroxy-3-methyl-2-(trifluoromethoxy)pyridine
3-Fluoro-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine-6-carboxylic acid
4-(Difluoromethyl)-2-hydroxy-3-methyl-5-(trifluoromethoxy)pyridine