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