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