Synthesis of indole thiazole compounds as ligands for the ah receptor
CA 2475331 C · Owner: Deluca, Hector F. · Inventors: Deluca, Hector F.; Sicinski, Rafal R.; Grzywacz, Pawel K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of synthesizing aromatic ketone compositions of formula (I) comprising the step of introducing a double bond into the 5 membered ring of the 4,5-dihydro-1,3-azoles moiety of formula (II) is disclosed. A method of synthesizing aromatic ketone compositions of formula (I) comprising the step of ring synthesis of the tetra hydro-1,3-azoles of formula (XI) is also disclosed.
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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 February 11, 2003 and granted June 12, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2025.
- 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.