[EN] MODIFIED NUCLEOSIDES AND NUCLEOTIDES ANALOGS AS ANTIVIRAL AGENTS FOR CORONA AND OTHER VIRUSES [FR] ANALOGUES DE NUCLÉOSIDES ET DE NUCLÉOTIDES MODIFIÉS UTILISÉS EN TANT QU'AGENTS ANTIVIRAUX CONTRE LE CORONAVIRUS ET D'AUTRES VIRUS
摘要:
Compounds, compositions and methods for preventing, treating or curing a coronavirus infection in human subjects or other animal hosts. In one embodiment, the compounds can be used to treat an infection with a severe acute respiratory syndrome virus, such as human coronavirus 229E, SARS, MERS, SARS-CoV-1 (OC43), and SARS-CoV-2. In another embodiment, the methods are used to treat a patient infected with a Flavivirus, Picornavus, Togavirus, or Bunyavirus.
The present invention relates to nucleoside diphosphate mimics and nucleoside triphosphate mimics, which contain diphosphate or triphosphate moiety mimics and optionally sugar-modifications and/or base-modifications. The nucleotide mimics of the present invention, in a form of a pharmaceutically acceptable salt, a pharmaceutically acceptable prodrug, or a pharmaceutical formulation, are useful as antiviral, antimicrobial, and anticancer agents. The present invention provides a method for the treatment of viral infections, microbial infections, and proliferative disorders. The present invention also relates to pharmaceutical compositions comprising the compounds of the present invention optionally in combination with other pharmaceutically active agents.
[EN] NUCLEOSIDE DERIVATIVES FOR TREATING HEPATITIS C VIRUS INFECTION<br/>[FR] DERIVES NUCLEOSIDIQUES DESTINES AU TRAITEMENT DE L'INFECTION PAR LE VIRUS DE L'HEPATITE C
申请人:——
公开号:WO2003093290A3
公开(公告)日:2004-03-18
A Short, Flexible Route toward 2‘-<i>C</i>-Branched Ribonucleosides
作者:Rogers E. Harry-O'kuru、Jennifer M. Smith、Michael S. Wolfe
DOI:10.1021/jo961893+
日期:1997.3.1
A five-step synthesis of 2'-C-branched ribonucleosides from commercially obtained 1,3,5-tri-0-benzoyl-alpha-D-ribofuranose (4) is described. The free hydroxyl group of 4 was oxidized in high yield with Dess-Martin periodane reagent. The resultant 2-ketosugar was treated with MeMgBr/TiCl4, CH2=CHMgBr/CeCl3, or TMSC drop CLi/CeCl3, and in each case addition to the ketone proceeded stereoselectively to provide 2-alkylated ribofuranosides. After conversion to the corresponding tetrabenzoyl derivatives, the 2-alkylribofuranosides were coupled to nucleobases under Vorbruggen persilylation conditions, giving the beta-nucleosides with high stereoselectivity. Deprotection with methanolic ammonia provided the title compounds in 17-49% overall yields from 4.