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