Ethyl 2-chloro-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-4-carboxylate
Ethyl 4-chloro-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxylate
Ethyl 4-chloro-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-carboxylate
Methyl 4-chloro-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-6-carboxylate