Ethyl 3-bromo-5-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 2-chloro-3-iodo-6-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 5-bromo-4-methyl-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-chloro-3-iodo-5-(trifluoromethoxy)pyridine-4-carboxylate