Inhibitors of production and/or secretion of amyloid-.beta. protein
CA 2351692 A1 · Owner: Terauchi, Jun · Inventors: Fukumoto, Hiroaki; Kakihana, Mitsuru; Terauchi, Jun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds represented by general formula (I) salts thereof or prodrugs of the , same which exhibit an excellent effect of inhibiting .beta.-amyloid protein production/secretion, wherein Ar represents an aromatic group; X and Y represent each a divalent group selected from among -O- -S-, -CO-, -SO-, -SO2-, -NR8-, -CONR8- -SO2NR8- and -COO- (wherein R8 represents H hydrocarbyl or , acyl), or divalent aliphatic C1-6 hydrocarbyl optionally containing one or two of these divalent groups; R1 and R2 represent each H or C1-6 alkyl or R1 and , R2 may form together with the nitrogen atom adjacent thereto a nitrogencontaining heterocycle; and the ring A represents a monocyclic aromatic ring.
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 November 18, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2021.
- 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.