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