Benzothiazole derivatives as adenosine receptor ligands
CA 2524366 C · Owner: Norcross, Roger David · Inventors: Jakob-Roetne, Roland; Riemer, Claus; Flohr, Alexander
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to compounds of the general formula (I) wherein R1 is 1,4-dioxepanyl or tetrahydropyran-4-yl; R2 is -N(R)-(CH2)n,-5-or 6 membered non aromatic heterocycle, optionally substituted by one or more substituents selected from the group consisting of lower alkyl or -NR2 or is - (CH2)n-5-or , 6 membered non aromatic heterocycle optionally substituted by -(CH2)n-OH, lower alkyl lower alkoxy, or is -CH2)n-5-or 6 membered aromatic heterocycle optionally substituted by lower alkyl, lower alkoxy halogen, halogen-lower , alkyl, -CH2N(R)(CH2)20CH3 -N(R)(CH2)20CH3, -CH2-morpholinyl or -CH2pyrrolidinyl or is (CH2)n-cycloalkyl, optionally substituted by hydroxy or is , …
Read the whole patent
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 May 14, 2004 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2026.
- 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.