Synthesis of purine nucleosides

US9045520B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9045520-B2
Application numberUS-201213491437-A
CountryUS
Kind codeB2
Filing dateJun 7, 2012
Priority dateDec 23, 2008
Publication dateJun 2, 2015
Grant dateJun 2, 2015

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A process for preparing phosphoramidate prodrugs or cyclic phosphate prodrugs of nucleoside derivatives, which is a compound, its stereoisomers, salts (acid or basic addition salts), hydrates, solvates, or crystalline forms thereof.

First claim

Opening claim text (preview).

The invention claimed is: 1. A compound of formula IV: or a salt thereof, wherein: R 5 is H or N 3 ; R 6 is CH 3 ; R 11 is a protecting group; and X is F. 2. A compound of formula V: or a salt thereof, wherein: R 5 is N 3 ; R…

Assignees

Inventors

Classifications

  • Human Necessities · mapped topic

  • Human Necessities · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • C07H19/20Primary

    Chemistry & Metallurgy · mapped topic

  • Cross-Sectional Technologies · mapped topic

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What does patent US9045520B2 cover?
A process for preparing phosphoramidate prodrugs or cyclic phosphate prodrugs of nucleoside derivatives, which is a compound, its stereoisomers, salts (acid or basic addition salts), hydrates, solvates, or crystalline forms thereof.
Who is the assignee on this patent?
Chun Byoung-Kwon, Du Jinfa, Rachakonda Suguna, and 7 more
What technology area does this patent fall under?
Primary CPC classification C07H19/20. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jun 02 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).