2-(Chloromethyl)-5-(difluoromethyl)-6-methylpyridine-3-acetic acid
6-(Chloromethyl)-3-(difluoromethyl)-2-methylpyridine-4-acetic acid
6-(Chloromethyl)-3-(difluoromethyl)-4-methylpyridine-2-acetic acid
2-(Chloromethyl)-5-(difluoromethyl)-4-methylpyridine-3-acetic acid