Novel semisynthetic macrolide antibiotics of the azalide series
CA 2509599 A1 · Owner: Kujundzic, Nedjeljko · Inventors: Kujundzic, Nedjeljko; Brajsa, Karmen; Bukvic Krajacic, Mirjana
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to N"-substituted 9a-N-(N'-carbamoyl-.gamma.aminopropyl), 9a--N-(N'-thiocarbamoyl-.gamma.-aminopropyl) 9a-N-N'-((.beta.-, cyanoethyl)-N'-carbamoyl-.gamma. -aminopropyl and 9a-N-N'-((.beta.cyanoethyl)-N'-thiocarbamoyl-.gamma.-aminopropyl derivatives of 9-deoxo-9dihydro-9a-aza-9a-homoerithromycin A and 5-0-desosaminyl-9-deoxo-9-dihydro-9aaza-9a-homoerithronolide A, novel semisynthetic macrolide antibiotics of the azalide series, of the general formula 1 wherein R represents H or cladinosyl , moiety R1 represents H or (.beta.-cyanoethyl moiety R2 represents isopropyl, 1-naphtyl, 2-naphtyl benzyl, 2-(trifluoromethyl)phenyl, 3-phenylpropyl .beta.-phenylethyl, …
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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
- Filed December 10, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2025.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.