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