Serine protease inhibitors
CA 2287569 A1 · Owner: Adang, Anton Egbert Peter · Inventors: Adang, Anton Egbert Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a compound having the formula (I): R1SO2-B-X-Z-C(O)- Y, B is a bond, an amino acid of the formula -NH-CH(CH2)pC(O)OH-C(O)- or an ester derivative thereof wherein p is 1 2, or 3, Gly, D-1-Piq, D-3-Piq, D-1-, Tiq D-3-Tiq, D-Atc, Aic, or a L- or D-amino acid having a hydrophobic basic , or neutral side chain; X is an amino acid with a hydrophobic side chain glutamine, serine, threonine, a cyclic amino acid optionally containing an additional heteroatom selected from N, O or S and optionally substituted with , (1-6C)alkyl (1-6C)alkoxy, benzyloxy or oxo, or X is 2-amino-isobutyric acid -, NR2-CH2-C(O)- or the fragment (I) or (II) wherein n is 2, 3, or 4, W is CH or , N …
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 April 28, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 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.