New 1,4-disubstituted cyclohexane derivatives for the treatment of depression
CA 2355361 A1 · Owner: American Home Products Corporation · Inventors: Mewshaw, Richard Eric; Baudy, Reinhardt Bernhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds useful for the treatment of disorders of the serotonin-affected neurological systems are provided which have formula (I) wherein: X is carbon or nitrogen; the dotted line represents an optional bond which is absent when X = N; R1 and R2 are each, independently hydrogen, halogen, CF3, alkyl, alkoxy, or MeSO2; R3 is hydrogen halogen, or alkyl; R4 is hydrogen, alkyl alkylaryl, or aryl; and R5 is hydrogen halogen, CF3, CN, carbamide, or , alkoxy; or a pharmaceutically acceptable salt thereof.
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 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 6, 2022.
- 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.