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