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