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