Metal-carborane complexes for radioimaging and radiotherapy and methods for their prepration
CA 2387436 A1 · Owner: Sogbein, Oyebola O. · Inventors: Valliant, John F.; Schaffer, Paul; Sogbein, Oyebola O.
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 a new method for the preparation of radiopharmaceuticals based on technetium and rhenium. The method involves the reaction of a salt of the formula M(CO)3(X m)3(1+3m) wherein , M, is selected from a radioisotope of rhenium technetium and any other, radioisotope that binds in a similar fashion X is any suitable ligand and m , is, the formal charge for ligand X with a nido-dicarbollide dianion of the formula, nido-(C2B9H11)2- and functional derivatives thereof. The method has been shown to be applicable to the preparation of radiopharmaceuticals at the tracer level.
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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 24, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 24, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 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
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.