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