2-Amino-3-(chloromethyl)-4-(trifluoromethoxy)pyridine-6-acetonitrile
5-Amino-4-(fluoromethyl)-2-iodo-3-(trifluoromethoxy)pyridine
3-Amino-2-methoxy-4-(trifluoromethoxy)pyridine-5-acetonitrile
6-Amino-2-(fluoromethyl)-3-iodo-4-(trifluoromethoxy)pyridine