5-Amino-3-nitro-4-(trifluoromethoxy)pyridine-2-acetonitrile
3-Bromo-6-chloro-2-(chloromethyl)-4-(trifluoromethoxy)pyridine
3-Amino-5-(fluoromethyl)-2-iodo-6-(trifluoromethoxy)pyridine
2-Amino-5-(chloromethyl)-3-(trifluoromethoxy)pyridine-6-acetic acid