Ethyl 2-chloro-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-carboxylate
Methyl 2-chloro-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-carboxylate
Ethyl 6-chloro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxylate
Methyl 2-chloro-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-carboxylate