4,1-benzoxazepines, their analogues, and their use as somatostatin agonists
CA 2285664 A1 · Owner: Mabuchi, Hiroshi · Inventors: Miki, Takashi; Mabuchi, Hiroshi; Suzuki, Nobuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a compound of formula (I) wherein ring A is an , optionally substituted aromatic hydrocarbon ring or aromatic heterocyclic ring; ring B is an optionally substituted aromatic hydrocarbon ring or aromatic heterocyclic ring; Z is an optionally substituted cyclic group or linear hydrocarbon group; R1 is a hydrogen atom an optionally substituted hydrocarbon group or heterocyclic ring; R2 is an optionally substituted amino group; D is a bond or an optionally substituted divalent hydrocarbon ring; E is a bond -CON(R a)-, -N(R a)CO-, -N(R b)CON(R c)- -N(R d)COO-, -N(R e)SO2-, -COO-, -, N(R f)- -O-, -S-, -SO-, -SO2-, and formula (a) or (b) (in which R a, R b, R c, R …
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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 April 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 2020.
- 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.