3-Fluoro-2-hydroxy-4-methyl-5-(trifluoromethoxy)pyridine
3-Fluoro-6-(difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine
6-Hydroxy-3-iodo-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
5-Fluoro-2-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine