Abstract:
:Novel drugs are urgently needed to combat hepatitis B virus (HBV) infection due to drug-resistant virus. In this paper, a series of novel 4-monosubstituted 2'-deoxy-2'-β-fluoro-4'-azido-β-d-arabinofuranosyl 1,2,3-triazole nucleoside analogues (1a-g) were designed, synthesized and screened for in vitro anti-HBV activity. At 5.0 μM in the cellular model, all the synthetic compounds display activities comparable to that of the positive control, lamivudine at 20 μM. Of the compounds tested, the amide-substituted analogue (1a) shows the most promising anti-HBV activity and low cytotoxicity in the cell model. In particular, it retains excellent activity against lamivudine-resistant HBV mutants. In duck HBV (DHBV)-infected duck models, both the serum and liver DHBV DNA levels (67.4% and 53.3%, respectively) were reduced markedly by the treatment with 1a. Analysis of the structure of HBV polymer/1a-triphosphate (1a-TP) complex shows that 1a-TP is stabilized by specific van der Waals interactions with the enzyme residues arising from 4-amino-1,2,3-triazole and the 4'-azido group.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Liu Y,Peng Y,Lu J,Wang J,Ma H,Song C,Liu B,Qiao Y,Yu W,Wu J,Chang Jdoi
10.1016/j.ejmech.2017.11.028subject
Has Abstractpub_date
2018-01-01 00:00:00pages
137-149eissn
0223-5234issn
1768-3254pii
S0223-5234(17)30923-6journal_volume
143pub_type
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