Indole derivatives with vascular damaging activity
CA 2406979 A1 · Owner: Blakey, David Charles · Inventors: Bird, Thomas Geoffrey; Blakey, David Charles; Boyle, Francis Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a compound of Formula (I) wherein: R1 and R2 are independently selected from hydrogen, halogen -CN, a hydrocarbyl group or a , group of Formula (II); wherein W is aryl or a heterocyclic group R4 is , independently selected from hydrogen halogen, -OH, amino, alkanoylamino, -, OPO3H2 or a hydrocarbyl group, wherein the amino group is optionally substituted by an amino acid residue and the hydroxy group is optionally esterified or two R4 groups together form an optionally substituted cyclic or heterocyclic group; X is selected from $M(y) S+- +-O-+, -+S(O)+-, -+S(O2)+- , and -+NH--; p is an integer from 0 to 4; and q is an integer from 1 to 4; R3 and R10 are …
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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 May 25, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 25, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2023.
- 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.