Methyl 4-methyl-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetate
Methyl 3-methyl-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-acetate
Methyl 3-methyl-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-acetate
5-Methyl-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-acetic acid