Design, synthesis and antiviral evaluation of novel acyclic phosphonate nucleotide analogs with triazolo[4,5-<i>b</i>]pyridine, imidazo[4,5-<i>b</i>]pyridine and imidazo[4,5-<i>b</i>]pyridin-2(3<i>H</i>)-one systems
作者:Anna Hartwich、Nee Zdzienicka、Dominique Schols、Graciela Andrei、Robert Snoeck、Iwona E. Głowacka
DOI:10.1080/15257770.2019.1669046
日期:2020.4.2
Abstract A new series of phosphonylated triazolo[4,5-b]pyridine (1-deaza-8-azapurine), imidazo[4,5-b]pyridine (1-deazapurine) and imidazo[4,5-b]pyridin-2(3H)-one (1-deazapurin-8-one) were synthesized from 2-chloro-3-nitropyridine and selected diethyl ɷ-aminoalkylphosphonates followed by reduction of the nitro group and cyclization. In the final step O,O-diethylphosphonates were transformed into the
摘要 一系列新的膦酰化三唑并[4,5-b]吡啶(1-deaza-8-azapurine)、咪唑并[4,5-b]吡啶(1-deazapurine)和咪唑并[4,5-b]吡啶- 2(3H)-one (1-deazapurin-8-one) 由 2-chloro-3-nitropyridine 和选择的 diethyl ɷ-aminoalkalkphosphonates 合成,然后还原硝基和环化。在最后一步中,O,O-二乙基膦酸酯被转化为相应的膦酸。所有合成的化合物都在体外评估了对多种 DNA 和 RNA 病毒的抑制活性,并且还确定了它们的细胞毒性效力。化合物 12f 在人胚胎肺 (HEL) 细胞中显示出针对巨细胞病毒 Davis 株 (EC50 = 76.47 μM) 的边缘活性,而化合物 10g (EC50 = 52.53 μM) 和 12l (EC50 = 61)。70 μM) 对 HEL