Methyl 6-chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 4-chloro-3-fluoro-5-(trifluoromethoxy)pyridine-2-acetate
Methyl 2-chloro-6-hydroxy-3-(trifluoromethoxy)pyridine-5-acetate
Methyl 4-chloro-3-fluoro-2-(trifluoromethoxy)pyridine-5-acetate