3658799

Information

• Patent Grant
• 3658799

• References
• Source

• Patent Number

  3,658,799

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1972
  52 years ago

• CPC

  • C07D501/04 - from compounds already containing the ring or condensed ring systems
  • A61K31/545 - Compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:
  • C07D501/18 - 7-Aminocephalosporanic or substituted 7-aminocephalosporanic acids
  • C07D501/24 - with hydrocarbon radicals, substituted by hetero atoms or hetero rings, attached in position 3
  • C07D501/26 - Methylene radicals, substituted by oxygen atoms Lactones thereof with the 2-carboxyl group
  • C07D501/38 - Methylene radicals, substituted by nitrogen atoms Lactams thereof with the 2-carboxyl group Methylene radicals substituted by nitrogen-containing hetero rings attached by the ring nitrogen atom Quaternary compounds thereof
  • Y02P20/55 - Synthetic design

• US Classifications

  • 540 - Organic compounds