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