Synthesis and Biological Activity of Some 5-Substituted-6-azauracil-N-1-Nucleosides of 2-Acetamido-2-Deoxy-D-glucose
作者:Najim A. Al-Masoudi、Fadhel B. Issa、Wolgang Pfleiderer、Hassan B. Lazrek
DOI:10.1080/15257779508009750
日期:1995.10
Glycosylation of the silylated 5-bromo- and 5-benzylmercapto-6-azauracil 1 and 2, respectively, with the acylated sugar 3 afforded 1-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-beta-D-glucopyranosyl)-5-br 4 and its 5-benzylmercapto analogue 6. Deblocking of 4 and 6 gave the free nucleosides 5 and 7, respectively. Alternatively, 6 was obtained from reaction of benzylmercaptan with 4 in pyridine. Reaction of 4 with morpholine, 2,4-dichlorobenzylamine and N-methylethanolamine gave the 5-alkylamino derivatives 8, 10 and 11, respectively. Deblocking of 8 gave nucleoside 9. All the newly synthesized compounds were characterized by their NMR, U.V. and mass specta. Compounds 5, 7, 9, 10 and 11 were tested for their activity against HIV type 1 and 2, but they did not show significant biological activity and not toxic at 100 mcg/ml. The antimutagenic activity of 5 and 7 is under investigation.