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