2-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Ethyl 2-chloro-4-(chloromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate
3-Chloro-5-hydroxy-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Ethyl 2-chloro-3-(chloromethyl)-6-(trifluoromethoxy)pyridine-4-carboxylate