Ethyl 4-(difluoromethyl)-5-methyl-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 6-(fluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 4-(fluoromethyl)-3-methyl-2-(trifluoromethoxy)pyridine-5-carboxylate