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