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