2-Hydroxy-3-methyl-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Ethyl 3-(fluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-5-carboxylate
3-Hydroxy-6-methyl-2-(trifluoromethoxy)pyridine-4-carbonyl chloride
Ethyl 2-(fluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-4-carboxylate