Ethyl 4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 3-(difluoromethyl)-6-methyl-2-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 4-(chloromethyl)-2-methyl-6-(trifluoromethoxy)pyridine-3-carboxylate
3-(Difluoromethyl)-6-methyl-4-(trifluoromethoxy)pyridine-2-acetic acid