PROCESS FOR THE PREPARATION OF 1-N-(.alpha.-SUBSTITUTED-.omega.-AMINOACYL)-3'-D OXYRIBOSTAMYCIN
CA 1058611 A · Owner: Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai · Inventors: Tsuchiya, Tsutomu; Umezawa, Hamao; Umezawa, Sumio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
OF THE DISCIOSURE:, A 1-N-(a-substituted-.omega.-aminoacyl)-3'-deoxyribostamycin, which is a useful antibiotic active against various drug-resistant bacteria, can be prepared advantageously by a process starting from a protected derivative of ribostamycin in the form of 1,6-carbamate and comprising the 3'-deoxygenation, the splitting oi the carbamate linkage and the 1-acylation.
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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 July 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 17, 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.