2-(Difluoromethyl)-6-fluoro-3-(trifluoromethoxy)pyridine-4-acetic acid
2-Hydroxy-4-methyl-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Hydroxy-4-methyl-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
6-(Difluoromethyl)-3-fluoro-4-(trifluoromethoxy)pyridine-2-acetic acid