Ethyl 3-chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2-chloro-5-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxylate
2-Cyano-6-iodo-3-nitro-5-(trifluoromethoxy)pyridine
Ethyl 2-chloro-4-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxylate