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