317820-41-0

Upstream product

• 75-07-0 acetaldehyde 
• 212061-25-1 5'-O-(tert-butyldiphenylsilyl)-2'-O-[2-[(2,3-dihydro-1,3-dioxo-1H-isoindol-2-yl)oxy]ethyl]-5-methyluridine 
• 134821-75-3 5′-O-tert-butyldiphenylsilyl-O²-2′-anhydro-5-methyluridine 
• 212061-24-0 5'-O-(tert-butyldiphenylsilyl)-2'-O-(2-hydroxyethyl)-5-methyluridine 
• 171763-19-2 5'-O-tert-butyldiphenylsilyl-O²-2'-anhydro-5-methyluridine 
• 58479-61-1 tert-butylchlorodiphenylsilane 
• 22423-26-3 O-2,2'-cyclo-5-methyluridine 

Downstream Products

• 317820-42-1 5'-O-(tert-butyldiphenylsilyl)-2'-O-[2-[(N,N-diethylamino)oxy]ethyl]-5-methyluridine 
• 317820-44-3 5'-O-(4,4'-dimethoxytrityl)-2'-O-[2-[(N,N-diethylamino)oxy]ethyl]-5-methyluridine 

Relevant academic research and scientific papers

NUCLEOSIDE DERIVATIVES AS INHIBITORS OF RNA-DEPENDENT RNA VIRAL POLYERMASE

The present invention provides nucleoside compounds and certain derivatives thereof which are inhibitors of RNA-dependent RNA viral polymerase. These compounds are inhibitors of RNA-dependent RNA viral replication and are useful for the treatment of RNA-dependent RNA viral infection. They are particularly useful as inhibitors of hepatitis C virus (HCV) NS5B polymerase, as inhibitors of HCV replication, and/or for the treatment of hepatitis C infection. The invention also describes pharmaceutical compositions containing such nucleoside compounds alone or in combination with other agents active against RNA-dependent RNA viral infection, in particular HCV infection. Also disclosed are methods of inhibiting RNA-dependent RNA polymerase, inhibiting RNA-dependent RNA viral replication, and/or treating RNA-dependent RNA viral infection with the nucleoside compounds of the present invention.

OLIGONUCLEOTIDES HAVING MODIFIED NUCLEOSIDE UNITS

Disclosed are oligonucleotides and oligonucleosides that include one or more modified nucleoside units. The oligonucleotides and oligonucleosides are particularly useful as antisense agents, ribozymes, aptamer, siRNA agents, probes and primers or, when hybridized to an RNA, as a substrate for RNA cleaving enzymes including RNase H and dsRNase.

2'-O-[2-[N,N-(dialkyl)aminooxy]ethyl]-modified antisense oligonucleotides.

[structure] Oligonucleotides with two novel modifications, 2'-O-2-[N, N-(dimethyl)aminooxy]ethyl (2'-O-DMAOE) and 2'-O-2-[N, N-(diethyl)aminooxy]ethyl (2'-O-DEAOE), have been synthesized. These modifications exhibit high binding affinity to target RNA (and not to DNA) and enhance the nuclease stability of oligonucleotides considerably with t(1/2) > 24 h as a phosphodiester.