Peracetylated 6-thioguanosine (2) undergoes the so far unknown N-->S transglycosylation reaction to form a stable 9,S-6-bis(ribosyl) derivative (3) and N-2-acetyl-6-thioguanine (4). The reaction takes place at elevated temperatures with no catalyst, or in solution in the presence of acidic catalysts. The reversible 7 reversible arrow 9 isomerization, characteristic for guanosine and its analogs, has not been observed in this case.
Transglycosylation Reactions of 6-Thioguanine Acyclonucleosides
作者:Andrzej Manikowski、Jerzy Boryski
DOI:10.1080/15257770008045447
日期:2000.10
9-(2-Acetoxyethoxy)methyl-N-2-acetyl-6-thioguanine (2) undergoes two different transglycosylation reactions: i) the 7 reversible arrow 9 isomerization, which gives the respective 7-regioisomer (3) as the major product ii) the 9 reversible arrow S-6 glycosyl migration, which leads to a 9,S-6-disubstituted product (4). S-6-Methylation completely stopped the reversibility of transglycosylation.
[EN] THIOGUANINE DERIVATIVES<br/>[FR] DÉRIVÉS DE THIOGUANINE
申请人:MALAYSIAN INST OF PHARMACEUTICALS AND NUTRACEUTICALS
公开号:WO2016038562A1
公开(公告)日:2016-03-17
The present invention is directed to use of thioguanine derivatives and their use in the treatment of dengue fever or West Nile virus.
本发明涉及噻鸟嘌呤衍生物的使用及其在治疗登革热或西尼罗河病毒中的应用。
Transglycosylation Reaction of 6-Thioguanosine
作者:Andrzej Manikowski、Jerzy Boryski
DOI:10.1080/07328319908044613
日期:1999.11
Peracetylated 6-thioguanosine (2) undergoes the so far unknown N-->S transglycosylation reaction to form a stable 9,S-6-bis(ribosyl) derivative (3) and N-2-acetyl-6-thioguanine (4). The reaction takes place at elevated temperatures with no catalyst, or in solution in the presence of acidic catalysts. The reversible 7 reversible arrow 9 isomerization, characteristic for guanosine and its analogs, has not been observed in this case.