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