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