Acyl and phosphate derivatives of 5,6-dihydro-5-azathymidine
CA 1056822 A · Owner: Upjohn Company (The) · Inventors: Bannister, Brian; Deboer, Clarence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new antibiotic U-44,590 known as 5,6-dihydro- 5-azathymidine and its derivatives are described. These antibiotics are active against Gram-negative bacteria and can be used in various environments to eradicate or control such bacteria. This divisional application is particularly directed to acyl and phosphate derivatives of U-44,590 having the formula wherein R and R1 are selected from the group consisting of a carboxylic acid acyl radical of from 2 to 18 carbon atoms inclusive; or a halo-, nitro-, hydroxyamino-, cyano-, thiocyano-, and lower alkoxy-substituted hydrocarbon carboxylic acid acyl radical of from 2 to 18 carbon atoms inclusive; R, is hydrogen and R1 is as defined above or …
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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 June 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 1996.
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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.