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