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