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