Straightforward Synthesis of Purine 4′-Alkoxy-2′-deoxynucleosides: First Report of Mixed Purine–Pyrimidine 4′-Alkoxyoligodeoxynucleotides as New RNA Mimics
were efficiently prepared from nucleoside 4′-5′-enol acetates in three steps by N-iodosuccinimide promoted alkoxylation, hydrolysis, and reduction followed by conversion to phosphoramidite monomers for the solid-phase synthesis of the oligonucleotides. Fully modified 4′-alkoxyoligodeoxynucleotides, which are characterized by a prevalent N-type (RNA-like) conformation, exhibited superior chemical and
SUBSTITUTED NUCLEOSIDES, NUCLEOTIDES AND ANALOGS THEREOF
申请人:Janssen BioPharma, Inc.
公开号:EP3466959A1
公开(公告)日:2019-04-10
Disclosed herein are nucleosides, nucleotides and analogs thereof of fomula (III), pharmaceutical compositions that include one or more of nucleosides, nucleotides and analogs thereof, and methods of synthesizing the same. Also disclosed herein are compouns of formula (III) for use in methods of ameliorating and/or treating a disease and/or a condition, including an infection from a paramyxovirus and/or an orthomyxovirus, with a nucleoside, a nucleotide and an analog thereof.
Provided herein are compounds, compositions and methods for the treatment of Flaviviridae infections, including HCV infections. In certain embodiments, compounds and compositions of nucleoside derivatives are disclosed, which can be administered either alone or in combination with other anti-viral agents. In certain embodiments, the compounds are 4′-OR nucleosides of Formula I:
or a pharmaceutically acceptable salt thereof, wherein Base, PD, R, Z
1
, Z
2
, Z
3
, and Z
4
are as defined herein.