3905989

Information

• Patent Grant
• 3905989

• References
• Source

• Patent Number

  3,905,989

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1975
  49 years ago

• CPC

  • C07D257/04 - Five-membered rings
  • C07C317/00 - Sulfones Sulfoxides
  • C07C317/12 - having sulfone or sulfoxide groups bound to carbon atoms of rings other than six-membered aromatic rings
  • C07C317/44 - having sulfone or sulfoxide groups and carboxyl groups bound to the same carbon skeleton
  • C07C323/00 - Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
  • C07C323/62 - having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton
  • C07D327/08 - [b,e]-condensed with two six-membered carbocyclic rings
  • C07D333/76 - Dibenzothiophenes
  • C07D339/08 - Six-membered rings
  • Y10S514/826 - Asthma

• US Classifications

  • 548 - Organic compounds
  • 514 - Drug, bio-affecting and body treating compositions
  • 534 - Organic compounds
  • 544 - Organic compounds
  • 549 - Organic compounds
  • 556 - Organic compounds
  • 562 - Organic compounds