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