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