Antibacterial agents
CA 1108136 A · Owner: Bristol-Myers Squibb Company · Inventors: Horning, Donald E.; Morris, Leeson R.; Douglas, James L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification discloses a steroselective total synthesis of certain novel substituted 4-morpholine-2carboxylic acids possessing ? fused .beta.-lactam ring in the 1,6-position and carrying a substituent cis to carbon 5 in the 7-position of the fused ring system represented by the general formula, I, wherein X is amino azido or acylamido and Z represents, optionally substituted C1-C6 alkyl aryl, aralkyl or, heterocyclic. When X is acylamino these acids (and their, pharmaceutically acceptable salts and physiologically hydrolyzed esters) are potent antibacterial agents. The compounds having the above general formula represent a new family of .beta.-lactam antibiotics. They can be …
Read the whole patent
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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 1998.
- 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.