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