Ethyl 4-fluoro-2-methyl-3-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 3-fluoro-5-methyl-4-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 5-fluoro-4-methyl-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3-fluoro-4-methyl-5-(trifluoromethoxy)pyridine-2-carboxylate