Benzylamidine derivatives with serotonin receptor binding activity
CA 2246027 A1 · Owner: Glennon, Richard A. · Inventors: Glennon, Richard A.; Law, Ho
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to compounds having serotonin receptor binding activity, to pharmaceutical compositions containing them and to their medical use, particularly in the treatment of CNS conditions. Described herein are compounds which have the general formula: (see above formula), wherein R1 is selected from a group of Formula i and ii: (see formula I and II), n is 1-3;, R2 is selected from H and C1-6alkyl; R3 is selected from H and C1-6alkyl;, R4 is selected from C1-6alkyl halo, phenyl, amino and nitro;, R5 is selected from H C1-6alkyl and arylalkyl;, R6 is selected from H or a alkylene group which is bonded to R4 to form the naphthalene ring skeleton; and salts, hydrates and solvates …
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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 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2020.
- 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.