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