Nitrogen mustard compounds and prodrugs therefor
CA 2364622 A1 · Owner: Davies, Lawrence Christopher · Inventors: Davies, Lawrence Christopher; Springer, Caroline Joy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention pertains to nitrogen mustard compounds (Formula (II)) and prodrugs therefor (Formula (I)), methods for their preparation pharmaceutical , compositions comprising such compounds and the use of such compounds and , compositions both in vitro and in vivo, in therapy and treatment for , example, of cancer, wherein: R1 and R2 are independently -Cl -Br, -I, -, OSO2CH3, or -OSO2Ph; R1a, R2a R1b, and R2b are independently -H, a C1-4alkyl group, or a C1-4haloalkyl group; R3 is -F -Cl, -Br, -I, -OCHF2, -C~CH, -OCF3, -CH3 -CF3, -SF5, -SCF3, or -CF2CF3; R4 is -H or as defined for R3; R5 is -H or -F; R7 is -H, -C(CH3)3, or -CH2-CH=CH2; Z is -CH2-T-W; T is -CH2- -O-, -S-, -(S=O)-, or …
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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 March 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2022.
- 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.