3884945

Information

• Patent Grant
• 3884945

• References
• Source

• Patent Number

  3,884,945

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1975
  49 years ago

• CPC

  • C07J1/0011 - substituted in position 17 by a keto group
  • C07J1/0022 - the substituent being an OH group free esterified or etherified
  • C07J7/0045 - not substituted in position 16
  • C07J41/005 - the 17-beta position being substituted by an uninterrupted chain of only two carbon atoms
  • C07J75/005 - Preparation of steroids by cyclization of non-steroid compounds

• US Classifications

  • 552 - Organic compounds