3198805

Information

• Patent Grant
• 3198805

• References
• Source

• Patent Number

  3,198,805

• Date Filed

  Not available

• Date Issued

  Tuesday, August 3, 1965
  59 years ago

• CPC

  • C07D261/20 - condensed with carbocyclic rings or ring systems
  • C07J69/00 - Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by contraction of only one ring by one atom and expansion of only one ring by one atom
  • C07J71/00 - Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
  • C07J71/0057 - Nitrogen and oxygen
  • C07J75/00 - Processes for the preparation of steroids in general

• US Classifications

  • 548 - Organic compounds
  • 560 - Organic compounds
  • 562 - Organic compounds
  • 564 - Organic compounds
  • 568 - Organic compounds