Epothilon derivatives, method for the production and the use thereof as pharmaceuticals
CA 2360952 A1 · Owner: Schirner, Michael · Inventors: Schwede, Wolfgang; Schirner, Michael; Klar, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the novel epothilon derivatives of general formula (I) wherein R4 is hydrogen, C1-C10 alkyl aryl, C7-C20 aralkyl, R5 is , hydrogen C1-C10 alkyl, aryl, C7-C20 aralkyl, R6 R7 are each a hydrogen atom, or together an additional bond or an oxygen atom R8 is a methyl group or , hydrogen, and simultaneously R1a and R1b together represent a trimethylene group and X is a 2-pyridyl, 2-methyl-4-thiazolyl or 2-methyl-4-oxazolyl residue or simultaneously R1a and R1b together represent a trimethylene group R2 is a methyl, ethyl or propyl group and X is a 2-pyridyl 2-methyl-4-, thiazolyl or 2-methyl-4-oxazolyl residue or simultaneously R1a and R1b each represents a methyl …
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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 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2022.
- 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.