Methyl 2-chloro-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetate
Ethyl 6-fluoro-2-methoxy-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 3-cyano-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetate
Methyl 5-cyano-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-acetate