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