3444216

Information

• Patent Grant
• 3444216

• References
• Source

• Patent Number

  3,444,216

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1969
  55 years ago

• CPC

  • C07J71/0026 - cyclic ketals
  • C07C45/29 - of hydroxy groups
  • C07C201/12 - by reactions not involving the formation of nitro groups
  • C07C205/44 - the carbon skeleton being further substituted by -CHO groups
  • C07J5/0046 - substituted in position 17 alfa
  • C07J5/0053 - not substituted in position 16
  • C07J9/00 - Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of more than two carbon atoms
  • C07J13/005 - with double bond in position 16 (17)
  • C07J21/00 - Normal steroids containing carbon, hydrogen, halogen or oxygen having an oxygen-containing hetero ring spiro-condensed with the cyclopenta(a)hydrophenanthrene skeleton
  • C07J71/001 - Oxiranes
  • C07C2101/04 - with a four-membered ring
  • C07C2101/14 - The ring being saturated
  • C07C2101/20 - The ring being twelve-membered
  • C07C2102/44 - The bicyclo ring system contains eight carbon atoms

• US Classifications

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