2-(Bromomethyl)-3-chloro-5-cyano-6-(trifluoromethoxy)pyridine
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