Synthesis, anti-HBV activity and renal cell toxicity evaluation of mixed phosphonate prodrugs of adefovir
作者:Xiao-Zhong Fu、Yu Ou、Jian-Ying Pei、Ying Liu、Jing Li、Wen Zhou、Yan-Yu Lan、Ai-Min Wang、Yong-Lin Wang
DOI:10.1016/j.ejmech.2012.01.013
日期:2012.3
A series of phosphonate ester prodrugs of adefovir incorporating L-amino (thio)acid and non-steroidal anti-inflammatory drug (NSAID) moieties were synthesized and their anti-HBV activity and renal cell toxicity were evaluated in HepG2 2.2.15 and HK-2 cells respectively. Bioactivity evaluation results revealed that this kind of adefovir prodrug have lower renal cell toxicity than adefovir dipivoxil. Compounds 8a and 8b, incorporating the NSAID ketoprofen and the L-amino acid (Val or Ile) structural fragments, exhibited more potent anti-HBV activity than adefovir dipivoxil with IC50 = 0.51 and 0.73 mu M, SI = 1697.64 and 881.92 respectively. In vitro stability studies showed that the synthesized prodrugs have higher chemical and plasma stability than the positive control adefovir dipivoxil. (C) 2012 Elsevier Masson SAS. All rights reserved.