Ethyl 2-(difluoromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-5-acetate
Methyl 4-(difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-3-acetate
3-Hydroxy-6-nitro-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
Methyl 3-(difluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-2-acetate