[EN] SUBSTITUTED NUCLEOSIDE AND NUCLEOTIDE ANALOGS<br/>[FR] NUCLEOSIDE SUBSTITUE ET ANALOGUES NUCLEOTIDIQUES
申请人:ALIOS BIOPHARMA INC
公开号:WO2010108140A1
公开(公告)日:2010-09-23
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 nucleotide analogs with protected phosphates.
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 diseases with the nucleotide analogs with one or more protecting groups.
Synthesis and Stability of Nucleoside 3′,5′-Cyclic Phosphate Triesters Masked with Enzymatically and Thermally Labile Phosphate Protecting Groups
作者:Vyankat A. Sontakke、Vaishali S. Shinde、Harri Lönnberg、Mikko Ora
DOI:10.1002/ejoc.201403227
日期:2015.1
Appropriately protected structurally modified nucleoside 3′,5′-cyclic monophosphates are known to show antiviral activity. For this reason, a straightforward synthesis of nucleoside 3′,5′-cyclic phosphates protected with three different enzymatically removable groups, viz. 3-acetyloxy-2,2-bis(ethoxycarbonyl)propyl (in 1 and 4), 4-acetylthio-2,2-dimethyl-3-oxobutyl (in 2), and 4-(tert-butyldisulfanyl)-2
Synthesis and Enzymatic Deprotection of Biodegradably Protected Dinucleoside-2′,5′-monophosphates: 3-(Acetyloxy)-2,2-bis(ethoxycarbonyl)propyl Phosphoesters of 3′-O-(Acyloxymethyl)adenylyl-2′,5′-adenosines
first step towards a viable prodrugstrategy for short oligoribonucleotides, such as 2-5A and its congeners, adenylyl-2',5'-adenosines bearing a 3-(acetyloxy)-2,2-bis(ethoxycarbonyl)propyl group at the phosphate moiety, and an (acetyloxy)methyl- or a (pivaloyloxy)methyl-protected 3'-OH group of the 2'-linked nucleoside have been prepared. The enzyme-triggered removal of these protecting groups by hog
Chemical and enzymatic stability of amino acid derived phosphoramidates of antiviral nucleoside 5′-monophosphates bearing a biodegradable protecting group
Ribavirin and 2â²-O-methylcytidine 5â²-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 2â²-O-methylcytidine pro-drugs was additionally determined over a pH range from 7.5 to 10.