3835160

Information

• Patent Grant
• 3835160

• References
• Source

• Patent Number

  3,835,160

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1974
  50 years ago

• CPC

  • C07D493/10 - Spiro-condensed systems
  • C07J1/0022 - the substituent being an OH group free esterified or etherified
  • 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
  • C07J7/00 - Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
  • C07J21/005 - Ketals
  • C07J41/0005 - the nitrogen atom being directly linked to the cyclopenta(a)hydro phenanthrene skeleton
  • C07C2103/16 - (Hydrogenated) benz[e]indenes

• US Classifications

  • 549 - Organic compounds
  • 540 - Organic compounds
  • 552 - Organic compounds
  • 560 - Organic compounds
  • 568 - Organic compounds