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