Method for preparing an n-(aliphatic or aromatic)carbonyl-2-aminoacetamide compound and a cyclyzed compound
CA 2318601 A1 · Owner: Aventis Pharmaceuticals Inc. · Inventors: Morrissette, Matthew M.; Mason, Helen J.; Labaudiniere, Richard F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method for preparing an N-(aliphatic or aromatic)carbonyl-2-aminoacetamide compound of formula (I) wherein Ra is (II); Raa is hydrogen, optionally substituted aliphatic or optionally substituted aromatic; Rb is hydrogen, optionally substituted aliphatic or optionally substituted aromatic; Rca and Rcb are independently hydrogen optionally substituted aliphatic or optionally substituted aromatic; Rd is (III); and Rda is optionally substituted aliphatic or optionally substituted aromatic; and Raa is substituted with a primary or secondary protected amine that upon deprotection can react with the *ab or *db carbon or at least one , of Rb, Rca or Rcb …
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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 January 29, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2021.
- 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
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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.