Methyl 4-fluoro-2-methoxy-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-fluoro-2-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 3-chloro-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-chloro-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylate