Compounds bearing sulphamoyl and amidino radicals, their preparation process and pharmaceutical compositions containing them
CA 2115631 A1 · Owner: Foulon, Loic · Inventors: Christophe, Bernard; Foulon, Loic; Valette, Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds bearing sulphamoyl and amidino radicals their prepa-, ration process and pharmaceutical compositions containing them. ABSTRACT The subject of the invention is the compounds of formula I, (I), in which, Ar1 represents naphtyl phenyl, quinolyl or isoquinolyl, optionally substituted; Ar2 represents a phenyl or thienyl optionally substituted; R1, R2 and R'2 are independently of each other H or (C1-C4)-, alkyl;, R1 represents nothing and N is attached to Ar2 and, optionally R2 and R'2 form a double bond; or R1 or R2 is attached to Ar2 and represents a (C1- C3 ) alkylene;, R3 and R4, which are identical or different represent H, (C1-C4)alkyl or form, with the nitrogen atom to which they …
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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 14, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2016.
- 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.