Heteroaryl-substituted deoxy glycero-phosphoethanolamines
CA 2180754 C · Owner: Paltauf, Friedrich · Inventors: Franzmair, Rudolf; Paltauf, Friedrich; Hermetter, Albin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Therapeutically active, heteroaryl-substituted deoxy glycerophosphoethanolamines are disclosed having general formula (I) wherein one of X, Y or Z is a fatty ether substituent one is, a heteroaryl ring substituent with 1 - 4 nitrogens as the only heteroatoms, one of which is bonded to a carbon of the glyceryl backbone and one is a phosphoethanolamine substituted at the nitrogen provided that each of X, Y and Z is a different substituent. Also disclosed are intermediate in processes for making compounds of formula (I). The intermediates are represented by a modification of general formula (I) in which the phosphoethanolamine substituent is replaced with an hydroxyl group. The invention …
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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 November 22, 1995 and granted January 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2017.
- 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.