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