Antibiotic sulfonylaminocarbonyl activated .beta.-lactams
CA 1317298 C · Owner: Barbachyn, Michael R. · Inventors: Barbachyn, Michael R.; Brickner, Steven J.; Thomas, Richard C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
ANTIBIOTIC SULFONYLAMINOCARBONYL ACTIVATED .beta.-LACTAMS This invention presents novel 2-azetidinone compounds which are useful as antibacterial agents to eradicate or control susceptible microbes of the formula, Formula 1, wherein R401 and R402 are the same or different and are a) hydrogen b) (C1-C12) alkyl c) (C2-C8) alkenyl, d) (C2-C8) alkynyl e), (C3-C10) cycloalkyl, f) phenyl optionally substituted with from one to 3 substituents selected from the group consisting of halogen hydroxy, amino, nitro, (C1-C4)alkyl, and (C1-C4)alkoxy g) benzyl, optionally substituted with from one to 3 substituents selected from the group consisting of halogen, hydroxy amino, nitro, (C1-C4)alkyl, and …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 4, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.