190141-28-7

Upstream product

• 14470-28-1 mono-4-methoxytrityl chloride 
• 36791-04-5 ribavirin 

Downstream Products

• 1171006-25-9 2',3'-di-O-levulinoyl-5'-O-(4-methoxytrityl)ribavirin 
• 139621-03-7 1-(2,3-di-O-benzoyl-β-D-ribofuranosyl)-1,2,4-triazole-3-carboxamide 

Relevant academic research and scientific papers

Chemical and enzymatic stability of amino acid derived phosphoramidates of antiviral nucleoside 5′-monophosphates bearing a biodegradable protecting group

Ribavirin and 2′-O-methylcytidine 5′-phosphoramidates derived from l-alanine methyl ester bearing either an O-phenyl or a biodegradable O-[3-(acetyloxy)-2,2-bis(ethoxycarbonyl)propyl] or O-[3-(acetyloxymethoxy)-2,2- bis(ethoxycarbonyl)propyl] protecting group were prepared. The kinetics of the deprotection of these pro-drugs by porcine liver esterase and by a whole cell extract of human prostate carcinoma was studied by HPLC-ESI-MS/MS. The 3-(acetyloxymethoxy)-2,2-bis(ethoxycarbonyl)propyl and 3-(acetyloxy)-2,2- bis(ethoxycarbonyl)propyl groups were readily removed releasing the l-alanine methyl ester phosphoramidate nucleotide, the deprotection of the 3-(acetyloxymethoxy) derivative being approximately 20 times faster. The chemical stability of the 2′-O-methylcytidine pro-drugs was additionally determined over a pH range from 7.5 to 10.

PROTECTED NUCLEOTIDE ANALOGS

Disclosed herein are nucleotide analogs with protected phosphates, methods of synthesizing nucleotide analogs with protected phosphates and methods of treating diseases and/or conditions such as viral infections, cancer, and/or parasitic diseases with the

PROTECTED NUCLEOTIDE ANALOGS

Disclosed herein are nucleotide analogs with one or more protecting groups, methods of synthesizing nucleotide analogs with one or more protecting groups and methods of treating diseases and/or conditions such as viral infections, cancer, and/or parasitic

Nucleotides: Part LII. Synthesis and biological activity of new base- modified (2'- 5')oligoadenylate trimers

Some new (2'- 5')oligoadenylate trimers, i.e., 22-28 containing the antiviral nucleoside ribavirin (= 1-(β-D-ribofuranosyl)-1H-1,2,4-triazole- 3-carboxamide; 7) and the synthetic cytokine 6-(benzylamino)purine riboside (= N6-benzyladenosine; 1) in different positions of the trimer, have been synthesized by the posphotriester method. The selectively blocked nucleosides 2-6 and 8-11 and the 2'-phosphodiesters 13 and 14, used for the oligonucleotide syntheses, were synthesized from the corresponding unprotected ribonucleosides 1 and 7, and isolated by silica-gel column chromatography. The fully deblocked trimers 22-28 were purified by ion- exchange chromatography on DEAE-Servavell 23-SS. The newly synthesized compounds were characterized by physical means. The ability of synthesized trimers to inhibit HIV-1 replication and to improve RNase L activation were investigated Some of the synthesized trimers showed also biological inhibition of HIV-1 reverse transcriptase and HIV-1-induced syncytia formation. It was shown that Ado(Bn)-containing trimers inhibited HIV-1- induced syncytia formation > 1500-fold, independently of the position of the Ado(Bn) residue in the oligomer chain.