Aminopyrrole derivatives
CA 1050556 A · Owner: Gruppo Lepetit S.P.A. · Inventors: Panzone, Gianbattista; Tarzia, Giorgio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New pharmacologically active aminopyrrole derivatives of the general formula, I, wherein:, R is selected from hydrogen (C1-4)alkyl, benzyl and halo-sub-, stituted benzyl; R1 represents hydrogen, (C1-4)alkyl, phenyl or substituted phenyl; R2 is a member of the class consisting of hydrogen (C-4)alkyl, formyl, (C2-4)aliphatic acyl benzoyl, carbo(C1-4)alkoxy-, (C2-4)aliphatic acyl carbamyl, phenylcarbamyl, thiocarbamyl phenylthiocarbamyl, benzoylthiocarbamyl carboxyphenyl, benzone-, sulfonyl, (C1-4)alkylsulfonyl tolenesulfonyl, phenacylsulfonyl;, R3 is selected from hydrogen and (C1-4)alkyl; R4 represents (C2-4)aliphatic acyl, benzoyl substituted benzoyl, carbo(C1-4)alkoxy carboxy, carbamyl, …
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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
- Granted March 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 1996.
- 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.