Ethyl 2-cyano-6-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylate
4-Chloro-6-methyl-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
Ethyl 2-cyano-3-hydroxy-6-(trifluoromethoxy)pyridine-4-carboxylate
3-Chloro-4-methyl-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride