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