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