Compounds and methods for the inhibition of trypanosoma cruzi
CA 2453396 A1 · Owner: Gelb, Michael · Inventors: Buckner, Frederick S.; Ohkanda, Junko; Hamilton, Andrew D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to compounds according to the formula (I): Where RA is a C1-C10 substituted or unsubstituted linear branch-chained or cyclic , alkyl or alkenyl group or a phenyl group according to the formula (II): RB is a C1-C10 substituted or unsubstituted linear branch-chained or cyclic alkyl , or alkenyl group or a phenyl group of the formula (III): R1 R2 , R3, R4, R5, R6, R7, R8, R9 and R10 are each independently selected from H C1-, C10(preferably a C1-C4)alkyl or alkenyl group CF3, F, Cl, Br, I, CN, NO2, NH2, NHR, NRR COR (acyl group), OR (hydroxyl or ether group) CO2R , (carboxylic acid or ester group ) or COSR (thioester group) where R is H or a C1-C10(preferably a …
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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 July 11, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2024.
- 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.