3342813

Information

• Patent Grant
• 3342813

• References
• Source

• Patent Number

  3,342,813

• Date Filed

  Not available

• Date Issued

  Tuesday, September 19, 1967
  57 years ago

• CPC

  • A61K31/58 - containing heterocyclic rings
  • A61K31/575 - substituted in position 17 beta by a chain of three or more carbon atoms
  • C07C39/18 - monocyclic with unsaturation outside the aromatic ring
  • C07J5/00 - Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom
  • C07J9/00 - Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of more than two carbon atoms
  • C07J19/00 - Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 by a lactone ring
  • C07J75/00 - Processes for the preparation of steroids in general

• US Classifications

  • 540 - Organic compounds
  • 552 - Organic compounds