Polyamine compounds and methods for their production
CA 1049005 A · Owner: Parke, Davis And Company · Inventors: Woo, Peter W.K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
NEW POLYAMINE COMPOUNDS AND, METHODS FOR THEIR PRODUCTION" Abstract of the Disclosure, 0-2,6-Diamino-2,3,4,6-tetradeoxy-.alpha.-D-erythrohexopyranosyl-(1?4)-0-5-amino-5-deoxy-.beta.-D-xylofuranosyl- (1?5)-N1-(S)-4-amino-2-hydroxy-1-oxobutyl-2-deoxystreptamine, also known as aminotrideoxybutirosin A and, acid-addition salts. They have a wide spectrum of antibacterial activity. The above compounds can be produced from aminodeoxybutirosin A by the sequence of reactions which comprises protecting the five primary amino groups by converting them to arylmethoxycarbonyl derivatives, converting the 3',4'hydroxyl groups to an acetal, acylating the remaining four hydroxyl groups,and hydrolyzing the …
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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 February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 1996.
- 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.