Ethyl 4-amino-2-iodo-5-(trifluoromethoxy)pyridine-3-carboxylate
5-Amino-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Amino-4-iodo-2-(trifluoromethoxy)pyridine-5-sulfonamide
3-Amino-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-carboxylic acid