Methyl 2,3-dimethyl-4-(trifluoromethoxy)pyridine-6-acetate
Methyl 3-(difluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine-5-acetate
Methyl 6-(difluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 2,4-dihydroxy-6-(trifluoromethoxy)pyridine-3-acetate