Combinatorial hydroxypropylamine library
CA 2243568 A1 · Owner: Waksmunski, Frank S. · Inventors: Baldwin, John J.; Waksmunski, Frank S.; Henderson, Ian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combinatorial library is disclosed which is represented by formula (I) or (I') wherein: (A) is a solid support; T'-L- is an identifier residue; and -L'- II' is a ligand/linker residue. This library contains hydroxypropylamines of the formula (II): -Aa1-Aa2-(CH2Ar1)-CH2CHOH-CH2XR1 wherein: Aa1 and Aa2 is each an amino acid joined to each other through an amide bond; Ar1 is an aromatic ring system; -CH2Ar1 is attached to N on Aa2; and R1 is H C1-20 , alkyl, alkenyl, alkynyl, aryl, heteroaryl aryl or heteroaryl fused to a 3- or , 4-membered moiety to form a non-aromatic second ring or substituted C1-20 , alkyl, alkenyl, or alkynyl.
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 23, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 23, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2019.
- 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.