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