Piperidine and piperazine derivatives
CA 2396007 A1 · Owner: Van Amsterdam, Christoph · Inventors: Bartoszyk, Gerd; Prucher, Helmut; Greiner, Hartmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to compounds of formula (I) wherein R1, R2, X, Y and , alk are defined as per claim 1 are potent 5-HT2A antagonists and are suitable for treating psychosis, schizophrenia, depression neurological disorders, impaired memory Parkinson's disease, amyotrophic lateral sclerosis Alzheimer's disease, Huntington's disease eating disorders, such as bulimia , and anorexia nervosa premenstrual syndrome and/or for positively influencing compulsive behaviour (obsessive-compulsive disorder OCD).
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 January 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 5, 2023.
- 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.