with hetero rings as additional substituents on the carbon chain

Patents Grantslast 30 patents

  • Information Patent Grant

    Alpha-aminoacyl-penicillins and cephalosporins

    • Patent number 4,734,407
    • Issue date Mar 29, 1988
    • Bayer Aktiengesellschaft
    • Gunter Schmidt
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    3755299

    • Patent number 3,755,299
    • Issue date Aug 28, 1973
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    3202653

    • Patent number 3,202,653
    • Issue date Aug 24, 1965
    • C07 - ORGANIC CHEMISTRY