Imidazolidine derivatives
CA 2105014 C · Owner: Breipohl, Gerhard · Inventors: Klingler, Otmar; Konig, Wolfgang; Zoller, Gerhard
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 of the general formula I, in which R is hydrogen or (C1-C6)-alkyl R1 is -(CH2)n-NH-X where, n is an integer from 1 to 6 and X is for example, hydrogen or, (C1-C6)-alkyl R2, R3 and R4 are each, for example, hydrogen r is, an integer. from 0 to 3, Y is -(CH2)m-CO- where m is an integer from 1 to 4, Z is oxygen or sulphur and W is for example, hydroxyl. The compounds of the invention inhibit platelet aggregation, the metastasis of carcinoma cells and osteoclast binding to the bone surfaces. They are therefore useful in therapy and prophylaxis of vascular diseases cancer and, osteoporosis.
Read the whole patent
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 August 27, 1993 and granted November 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2015.
- 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.