Ethyl 2-chloro-6-fluoro-3-(trifluoromethoxy)pyridine-4-acetate
Ethyl 2-chloro-5-fluoro-3-(trifluoromethoxy)pyridine-4-acetate
Ethyl 3-nitro-2-(trifluoromethoxy)pyridine-5-acetate
Ethyl 2-(difluoromethyl)-3-methyl-6-(trifluoromethoxy)pyridine-4-acetate