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