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