2-(Bromomethyl)-3-chloro-4-cyano-6-(trifluoromethoxy)pyridine
3-Bromo-6-(bromomethyl)-2-(trifluoromethoxy)pyridine-5-acetic acid
5-Bromo-2-(bromomethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid
4-Bromo-3-(bromomethyl)-6-(trifluoromethoxy)pyridine-2-acetic acid