Patents Examined by John D. Randolf
  • Cephalosporin analogues and processes for the preparation thereof
    Patent number: 4264597
    Abstract: Compounds of the formula ##STR1## wherein X is --O--or --S--;R.sup.1 is amino or a substituted amino group;R.sup.2 is carboxy or a protected carboxy group; and the heavy solid line means single or double bond; the compounds are useful in the treatment of infectious diseases particularly fungal infection, in human beings and animals.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: April 28, 1981
    Inventors: Masashi Hashimoto, Keiji Hemmi, Matsuhiko Aratani, Hidekazu Takeno, Daijiro Hagiwara