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