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