Amino acid-derived, 7-membered cyclic sulfamides and methods of synthesizing the same
CA 2419768 C · Owner: The University Of Kansas · Inventors: Dougherty, Joseph M.; Probst, Donald A.; Hanson, Paul R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New sulfamide compounds and methods of forming those compounds are provided. The inventive methods comprise subjecting a template opened-ring sulfamide compound to a ring-closing metathesis reaction in the presence of a Grubbs catalyst to yield a heterocyclic sulfamide. Advantageously the template , structures can be provided with a wide array of functional groups (e.g. substituted and unsubstituted amino acid side chains peptides) chosen to , provide particular properties to the compound. The preferred heterocyclic sulfamides are represented by a formula selected from the group consisting of formulae (I), (II), (III), and (IV).
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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 August 6, 2001 and granted April 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2023.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.