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