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