Methyl 2-(bromomethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 3-(difluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-2-carboxylate
2-Hydroxy-4-iodo-6-(trifluoromethoxy)pyridine-3-sulfonamide
Methyl 3-(difluoromethyl)-2-hydroxy-6-(trifluoromethoxy)pyridine-5-carboxylate