Methyl 2-(difluoromethyl)-6-methyl-3-(trifluoromethoxy)pyridine-5-acetate
Methyl 4-cyano-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 2-(difluoromethyl)-5-methyl-6-(trifluoromethoxy)pyridine-3-acetate
Methyl 6-(difluoromethyl)-3-methyl-4-(trifluoromethoxy)pyridine-2-acetate