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