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Last Updated: November 4, 2024

Details for Patent: 6,222,025


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Summary for Patent: 6,222,025
Title: Process for the synthesis of 2'-O-substituted pyrimidines and oligomeric compounds therefrom
Abstract:Oligonucleotide analogs are disclosed having pyrimidine monomeric sub-units therein that are modified at the 2' and 5 positions. Monomeric sub-units having these modifications may be further modified at the 2 position. Improved processes for the synthesis of 2'-O-substituted pyrimidine nucleosides are also provided. The processes feature alkylation of a 2,2'-anhydropyrimidine nucleoside or a 2S,2'-anhydropyrimidine nucleoside with a weak nucleophile in the presence of a Lewis acid.
Inventor(s): Cook; Phillip Dan (Escondido, CA), Sanghvi; Yogesh S. (Encinitas, CA), Sprankle; Kelly G. (Vista, CA), Ross; Bruce S. (Carlsbad, CA), Griffey; Rich H. (Vista, CA), Springer; Robert H. (Carlsbad, CA)
Assignee: Isis Pharmaceuticals, Inc. (Carlsbad, CA)
Application Number:08/894,899
Patent Claim Types:
see list of patent claims
Compound;

Drugs Protected by US Patent 6,222,025

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 6,222,025

PCT Information
PCT FiledMarch 06, 1996PCT Application Number:PCT/US96/03174
PCT Publication Date:September 12, 1996PCT Publication Number: WO96/27606

International Family Members for US Patent 6,222,025

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 327244 ⤷  Sign Up
Australia 5359496 ⤷  Sign Up
Canada 2214535 ⤷  Sign Up
Germany 69636160 ⤷  Sign Up
European Patent Office 0813539 ⤷  Sign Up
Japan 2001097994 ⤷  Sign Up
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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