5-Amino-2-(aminomethyl)-3-(trifluoromethoxy)pyridine-4-carboxylic acid
3-Chloro-2-hydroxy-6-(trifluoromethoxy)pyridine-5-carboxylic acid
2-Iodo-4-(methylthio)-3-(trifluoromethyl)pyridine
6-Chloro-3-(chloromethyl)-2-fluoro-4-(trifluoromethoxy)pyridine