3838163

Information

• Patent Grant
• 3838163

• References
• Source

• Patent Number

  3,838,163

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1974
  50 years ago

• CPC

  • C07D317/72 - spiro-condensed with carbocyclic rings
  • C07D261/08 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
  • C07D261/18 - Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen
  • C07D295/145 - with the ring nitrogen atoms and the carbon atoms with three bonds to hetero atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
  • C07F9/653 - Five-membered rings
  • C07J1/0059 - substituted in position 17 by a keto group
  • C07J15/005 - Retrosteroids (9 beta 10 alfa)
  • C07C2103/16 - (Hydrogenated) benz[e]indenes

• US Classifications

  • 548 - Organic compounds
  • 540 - Organic compounds
  • 546 - Organic compounds
  • 549 - Organic compounds
  • 987 - Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system