5-alkoxy-tryptamine derivatives, their preparation and their use as 5-ht1d receptor agonists
CA 2255884 A1 · Owner: Rakhit, Sumanas · Inventors: Rakhit, Sumanas; Meng, Qingchang; Slassi, Abdelmalik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel 5-alkoxy tryptamine derivatives are provided correponding to general , formula (I) wherein n is an integer from 1 - 3; R represents a straight or branched C1-C9 alkylene chain optionally interrupted by a phenylene group; X represents amino, mono(loweralkyl)amino di(loweralkyl)amino or optionally N-, lower alkyl-substituted pyrrolidine; and Y represents optionally substituted phthalimide, benzosulfonimide, naphthosultam naphthalimide, isoindolone , camphorsultam toluenesulfonamido, N, N'-dicarboxylated guanidino or Ncarboxylated amino, each of which is linked to R via a respective N-group thereof. The compounds show selective binding to 5-HT1D receptor subtypes and , have potential …
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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 May 28, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2019.
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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.