5-Amino-2-methyl-4-(trifluoromethoxy)pyridine-3-carboxylic acid
5-Amino-2-fluoro-4-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Amino-6-bromo-2-(trifluoromethoxy)pyridine-5-acetonitrile
4-Amino-3-fluoro-5-(trifluoromethoxy)pyridine-2-carboxylic acid