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