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