Imidazoquinolinylether derivatives
CA 1289137 C · Owner: Meanwell, Nicholas A. · Inventors: Meanwell, Nicholas A.; Wright, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel series of 2,3-dihydro-2-oxo-1H-imidazo- 4,5-bquinolinyl ether derivatives of formula wherein R1 is hydrogen, lower alkyl, benzyl; R2 is hydrogen halogen, lower alkyl, lower alkoxy; Alk is alkylene; Y is hydroxy and alkanoic or aralkanoic esters thereof oxo, ketone, dialkylamino, carboxylic acid and esters carboxamides, alkoxy, ethanolamines and cyclic carbamates thereof, tetrazolyl, and optionally substituted phenylsulfonyl. The compounds are cyclic AMP phosphodiesterase inhibitors and are particularly useful as inhibitors of blood platelet aggregation and/or as cardiotonic agents.
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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 September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2008.
- 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.