4-Amino-2-iodo-6-(trifluoromethoxy)pyridine-3-acetonitrile
4-Bromo-3-cyano-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine
6-Amino-4-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Amino-4-methoxy-5-(trifluoromethoxy)pyridine-3-carboxylic acid