5-Amino-4-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylic acid
6-Amino-4-(fluoromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine
3-Amino-2-(chloromethyl)-5-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Amino-3-(fluoromethyl)-5-methoxy-4-(trifluoromethoxy)pyridine