Freirel has recently reported that phenyl p-aminosalicylate (I) is about five times as effective as p-aminosalicylic acid (PAS) and nearly as effective as streptomycin as an antitubercular agent. However, no description has been made by him of, and no record is present in the literature on, the preparation and the physical and chemical properties of this interesting compound. We have prepated I and several other aryl p-aminosalicylates as potential ...
