7-oxabicycloheptane substituted oxa prostaglandin analogs
CA 1256888 A · Owner: Squibb (E.R.) & Sons, Inc. · Inventors: Haslanger, Martin F.; Hall, Steven E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
7-OXABICYCLOHEPTANE SUBSTITUTED OXO PROSTAGLANDIN ANALOGS, 7-Oxabicycloheptane substituted oxo prostaglandin analogs are provided having the structural formula, wherein R is hydrogen lower alkyl, alkali metal, or tris(hydroxymethyl)aminomethane R1 is hydrogen, lower alkyl, aryl, aralkyl cycloalkyl or cyclo-, alkylalkyl, A is -CH=CH- or -(CH2)2y is 0 to 4, m is 0 to 8, and n is 1 to 4 p is 1 to 12 and q is, 0 to 5, and including all stereoisomers thereof. The compounds are antiinflammatory agents useful, for axample, in the treatment of inflammatory diseases and analgesic agents as well as cardiovascular agents useful, for example in, the treatment of thrombolytic disease.
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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 July 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 4, 2006.
- 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
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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.