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