N-1 substituted .beta.-lactams as antibiotics
CA 1317302 C · Owner: Upjohn Company (The) · Inventors: Barbachyn, Michael R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
NOVEL N-1 SUBSTITUTED .beta.-LACTAMS AS ANTIBIOTICS This invention presents novel 2-azetidinone compounds of the formula, wherein R10 and R15 are the same or different and are a) hydrogen b), (C1-C12) alkyl, c) (C2-C8) alkenyl d) (C2-C8) alkynyl, e) -CH2OCO-, CH2NHR4 f) -CH2OCO2R30, g) -CH2F, or h) -CHF2; wherein R4 is hydrogen or -COH; wherein R30 is (C1-C8)alkyl; wherein R20 is an acyl group derived from a carboxylic acid; wherein A is oxygen or sulfur; and wherein R70 is a) hydrogen, b) (C1-C8) alkyl c) phenyl, d) -OH, or e) -SH; where each member of b or c may optionally be substituted by 1 to 2 substituents selected from the group consisting of halogen hydroxy, and amino. These …
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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
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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.