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