Ethyl 2-(difluoromethyl)-3-methyl-4-(trifluoromethyl)pyridine-6-acetate
Ethyl 2-(difluoromethyl)-3-methyl-4-(trifluoromethyl)pyridine-5-acetate
Ethyl 5-hydroxy-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 4-hydroxy-5-(trifluoromethoxy)pyridine-2-acetate