Cyclopentane derivatives as therapeutic agents
CA 2433157 A1 · Owner: Burk, Robert M. · Inventors: Burk, Robert M.; Posner, Mari F.; Holoboski, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a novel compound represented by the general formula (I); wherein R is H or COR3; R1is H R2, phenyl, or COR3, wherein R2 , is C1-C5 lower alkyl and R3 is R2 or phenyl; Z is CH2 or O; Y is OH OCOR3 or , =O; x is 0 or 1; and X is C1-C5 n-alkyl C3-C7 cycloalkyl, phenyl, furanyl, thienyl or substituted derivatives thereof wherein the substituents maybe , selected from the goup consisting of C1-C5 alkyl halogen, CF3, CN, NO2, NR42, CO2R4 and OR4 wherein R4 is hydrogen or C1-C5 alkyl and dotted lines represent the presence or absence of a double bond and wavy lines represent a cis or trans bond. These novel compounds are especially useful for treating elevated …
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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 May 23, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 23, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2023.
- 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.