3-Fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Ethyl 2-(difluoromethyl)-5-fluoro-3-(trifluoromethoxy)pyridine-6-acetate
6-Fluoro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Fluoro-5-hydroxy-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride