Design, Synthesis, Antiviral, and Cytostatic Evaluation of Novel Isoxazolidine Analogues of<i>C</i>-Nucleotides
作者:Magdalena Grabkowska-Drużyc、Jan Balzarini、Dorota G. Piotrowska
DOI:10.1080/15257770.2013.851794
日期:2013.12.2
phonates have been synthesised from N-methyl-C-diethoxyphosphorylnitrone and vinyl aryls in good yields. Isoxazolidine phosphonates obtained herein were evaluated for activity against a broad range of DNA and RNA viruses. None of the compounds were endowed with antiviral activity nor cytostatic activity at 100 to 250 μM concentrations.
Design, Synthesis and Cytotoxicity of a New Series of Isoxazolidine Based Nucleoside Analogues
作者:Dorota G. Piotrowska、Marcin Cieślak、Karolina Królewska、Andrzej E. Wróblewski
DOI:10.1002/ardp.201000282
日期:2011.5
transformation into the respective phosphonic acids has been accomplished via dealkylation procedure using trimethylsilyl bromide. Phosphonates having 1‐ and 2‐naphthyl substituents at C5 in the isoxazolidine ring as well as the respective phosphonic acids have been found cytotoxic to HeLa and K562 cells with IC50 in the 0.1–0.3 mM range. Preliminary studies on mechanism of action imply that intercalation
5-芳基异恶唑烷-3-基-3-二乙氧基膦酸酯已由N-甲基-C-二乙氧基磷酰硝酮和乙烯基芳基以良好的收率合成,并通过使用三甲基甲硅烷基溴的脱烷基化程序将它们转化为相应的膦酸。在异恶唑烷环的 C5 上具有 1- 和 2- 萘基取代基的膦酸酯以及相应的膦酸被发现对 HeLa 和 K562 细胞具有细胞毒性,IC50 在 0.1-0.3 mM 范围内。对作用机制的初步研究表明,DNA 的嵌入不对其细胞毒性特性负责。