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