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