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