Anti-HBV agents. Part 3: preliminary structure-activity relationships of tetra-acylalisol A derivatives as potent hepatitis B virus inhibitors.

Abstract:

:Thirty-two tetra-acylated derivatives of alisol A were synthesized and evaluated for their anti-hepatitis B virus (HBV) activities and cytotoxicities in vitro. Among the series of alisol A derivatives examined, five analogues were active against HBV surface antigen (HBsAg) and HBV e antigen (HBeAg) secretion in HepG 2.2.15 cells. These results also provide interesting structure-activity relationships of tetra-acylalisol A derivatives. Compounds tetra-acetyl alisol A (A1), tetra-methoxyacetyl alisol A (A23), and tetra-ethoxyacetyl alisol A (A24) exhibited high activities against secretion of HBsAg with IC(50) values of 0.0048, 0.0044, and 0.014 mM, respectively, HBeAg with IC(50) values of 0.011, 0.012, and 0.018 mM, respectively, and remarkable selective index values SI(HBsAg)>333, SI(HBeAg)>145; SI(HBsAg)=209, SI(HBeAg)=77; and SI(HBsAg)>200, SI(HBeAg)>156, respectively. Additional studies in rats showed that compound A1 has favorable pharmacokinetic prosperities for further development purpose, with elimination half-time (t(1/2)) of 1.63 h and oral bioavailability (F) of 40.9%.

journal_name

Bioorg Med Chem Lett

authors

Zhang Q,Jiang ZY,Luo J,Ma YB,Liu JF,Guo RH,Zhang XM,Zhou J,Niu W,Du FF,Li L,Li C,Chen JJ

doi

10.1016/j.bmcl.2009.10.006

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

6659-65

issue

23

eissn

0960-894X

issn

1464-3405

pii

S0960-894X(09)01407-3

journal_volume

19

pub_type

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