Journal
NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS
Volume 27, Issue 2, Pages 146-156Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15257770701795920
Keywords
acyclonucleosides; alkylation; antiviral activity; glycosides; quinoxalines
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A series of acyclonucleosides substituted 1-(4,5-dihydroxypentyl) (13-8) and 2-(4,5-dihydroxypentyloxy)quinoxalines (19-24) were synthesized by the sharpless asymmetric dihydroxylation of the derivatives 1-6 and 7-12, respectively. Treatment of the quinoxaline base 26 with (R)-2,2-dimethyl-1,3-dioxolan-4-ylmethyl-p-toluenesulfonate (27) in the presence of NaH/DMF furnished 28. Acid hydrolysis of 28 gave 1-(2,3-dihydroxypropyl)-6,7-dimethyl-quinoxaline-2-one (29). Alternatively, 29 was prepared by sharpless dihydroxylation of 30. All the compounds were evaluated for their in vitro anti-HIV-1 and HIV-2 in MT-4 cell and found inactive, except 29, which showed inhibition of HIV-1 with EC50 value of 0.15 +/- 0.1 mu g/ml and a therapeutic index (SI) of 73.
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