Thienopyranecarboxamide derivatives
CA 2378302 A1 · Owner: Riva, Carlo · Inventors: Riva, Carlo; Motta, Gianni; Leonardi, Amedeo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds (I) (R = aryl, cycloalkyl or polyhaloalkyl R1 = alkyl, alkoxy, polyfluoroalkoxy, hydroxy or trifluoromethanesulphonyloxy each of R2 and R3 , independently = H, halogen alkoxy or polyfluoroalkoxy, n is 0, 1 or 2) and their N-oxides or pharmaceutically acceptable salts are endowed with enhanced selectivity for the .alpha.1 adrenergic receptor and a low activity in lowering blood pressure. This activity profile makes these compounds useful in the treatment of obstructive syndromes of the lower urinary tract including , benign prostatic hyperplasia (BPH) in lowering intraocular pressure, in the treatment of cardiac arrhythmia and erectile and sexual dysfunction and in , the …
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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 July 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 2022.
- 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.