2-Amino-4-(chloromethyl)-6-nitro-3-(trifluoromethoxy)pyridine
3-Amino-4-(chloromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine
2-Amino-4-(chloromethyl)-3-fluoro-5-(trifluoromethoxy)pyridine
3-Amino-2-(chloromethyl)-6-hydroxy-5-(trifluoromethoxy)pyridine