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