Methyl 4-chloro-2-methyl-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-chloro-2-methyl-5-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-bromo-3-nitro-5-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 4-chloro-2-methyl-3-(trifluoromethoxy)pyridine-5-carboxylate