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