Use of 9-(beta-D-arabinofuranosyl) adenine derivatives for the preparation of pharmaceutical compositions for the treatment of aids
申请人:WARNER-LAMBERT COMPANY
公开号:EP0317728A2
公开(公告)日:1989-05-31
9-(β-D-arabinofuranosyl)adenine, also commonly known as Ara-A or vidarabine, esters thereof, or a pharmaceutically acceptable salt thereof, possess antiviral activity against the HTLV-III/LAV virus implicated in acquired immune deficiency syndrome (AIDS). The invention is related to the use of compounds of formula I
for the preparation of pharmaceutical compositions useful in the treatment of infections of the HTLV-III/LAV virus in patients.
Regioselective enzymatic acylation of pharmacologically interesting nucleosides in 2-methyltetrahydrofuran, a greener substitute for THF
作者:Yolanda Simeó、José Vicente Sinisterra、Andrés R. Alcántara
DOI:10.1039/b818992g
日期:——
1-β-Arabinofuranosyl uracil, 9-β-arabinofuranosyl adenosine, 2′-O-(2-methoxyethyl)-5-methyl uridine, adenosine and uridine were enzymatically acylated with hexanoic anhydride and vinyl esters by CALB lipase (lipase B from Candida antarctica) with excellent regioselectivity in many cases and analytical reaction yields above 90%. The influence of the stereochemistry of the hydroxyl group on C-2′ was studied. Some of these esterifications were carried out in 2-methyltetrahydrofuran (MeTHF), which is described as an excellent substitute for THF in biocatalysed processes in organic media. This application for this green solvent is a proof-of-concept opening the use of MeTHF in biotransformations.