Design, Synthesis, and Biological Evaluation of Triazolo-pyrimidine Derivatives as Novel Inhibitors of Hepatitis B Virus Surface Antigen (HBsAg) Secretion
摘要:
The high levels of hepatitis B virus (HBV) surface antigen (HBsAg)-bearing subviral particles in the serum of chronically infected individuals play an important role in suppressing HBV-specific immune response and are only mildly affected by the current small molecule therapies. Thus, a therapy that specifically reduces HBsAg serum levels could be used in combination therapy with nucleos(t)ide drugs or permit therapeutic vaccination for the treatment of HBV infection. Herein, we report the design, synthesis, and evaluation of novel triazolo-pyrimidine inhibitors (1, 3, and 4) of HBsAg cellular secretion, with activity against drug-resistant HBV variants. Extensive SAR led to substantial improvements in the EC50 of the parent compound, 5 (HBF-0259), with the best being 3c, with EC50 = 1.4 +/- 0.4 mu M, SI >= 36. The lead candidates, both la (PBHBV-001) and 3c (PBHBV-2-15), were well-tolerated in both normal and HBV-transgenic mice and exhibited acceptable pharmacokinetics and bioavailability in Sprague-Dawley rats.
Design, Synthesis, and Biological Evaluation of Triazolo-pyrimidine Derivatives as Novel Inhibitors of Hepatitis B Virus Surface Antigen (HBsAg) Secretion
摘要:
The high levels of hepatitis B virus (HBV) surface antigen (HBsAg)-bearing subviral particles in the serum of chronically infected individuals play an important role in suppressing HBV-specific immune response and are only mildly affected by the current small molecule therapies. Thus, a therapy that specifically reduces HBsAg serum levels could be used in combination therapy with nucleos(t)ide drugs or permit therapeutic vaccination for the treatment of HBV infection. Herein, we report the design, synthesis, and evaluation of novel triazolo-pyrimidine inhibitors (1, 3, and 4) of HBsAg cellular secretion, with activity against drug-resistant HBV variants. Extensive SAR led to substantial improvements in the EC50 of the parent compound, 5 (HBF-0259), with the best being 3c, with EC50 = 1.4 +/- 0.4 mu M, SI >= 36. The lead candidates, both la (PBHBV-001) and 3c (PBHBV-2-15), were well-tolerated in both normal and HBV-transgenic mice and exhibited acceptable pharmacokinetics and bioavailability in Sprague-Dawley rats.
NOVEL INHIBITORS OF SECRETION OF HEPATITIS B VIRUS ANTIGENS
申请人:Xu Xiaodong
公开号:US20130303552A1
公开(公告)日:2013-11-14
Pharmaceutical compositions of the invention comprise triazolopyrimidines useful for the treatment of hepatitis virus in a patient.
本发明的制药组合物包括三唑嘧啶,可用于治疗患者的肝炎病毒。
US8921381B2
申请人:——
公开号:US8921381B2
公开(公告)日:2014-12-30
US9533990B2
申请人:——
公开号:US9533990B2
公开(公告)日:2017-01-03
[EN] NOVEL INHIBITORS OF SECRETION OF HEPATITIS B VIRUS ANTIGENS<br/>[FR] NOUVEAUX INHIBITEURS DE LA SÉCRÉTION D'ANTIGÈNES DU VIRUS DE L'HÉPATITE B
申请人:INST HEPATITIS & VIRUS RES
公开号:WO2012047856A2
公开(公告)日:2012-04-12
Pharmaceutical compositions of the invention comprise triazolopyrimidines useful for the treatment of hepatitis virus in a patient.
Design, Synthesis, and Biological Evaluation of Triazolo-pyrimidine Derivatives as Novel Inhibitors of Hepatitis B Virus Surface Antigen (HBsAg) Secretion
作者:Wenquan Yu、Cally Goddard、Elizabeth Clearfield、Courtney Mills、Tong Xiao、Haitao Guo、John D. Morrey、Neil E. Motter、Kang Zhao、Timothy M. Block、Andrea Cuconati、Xiaodong Xu
DOI:10.1021/jm200696v
日期:2011.8.25
The high levels of hepatitis B virus (HBV) surface antigen (HBsAg)-bearing subviral particles in the serum of chronically infected individuals play an important role in suppressing HBV-specific immune response and are only mildly affected by the current small molecule therapies. Thus, a therapy that specifically reduces HBsAg serum levels could be used in combination therapy with nucleos(t)ide drugs or permit therapeutic vaccination for the treatment of HBV infection. Herein, we report the design, synthesis, and evaluation of novel triazolo-pyrimidine inhibitors (1, 3, and 4) of HBsAg cellular secretion, with activity against drug-resistant HBV variants. Extensive SAR led to substantial improvements in the EC50 of the parent compound, 5 (HBF-0259), with the best being 3c, with EC50 = 1.4 +/- 0.4 mu M, SI >= 36. The lead candidates, both la (PBHBV-001) and 3c (PBHBV-2-15), were well-tolerated in both normal and HBV-transgenic mice and exhibited acceptable pharmacokinetics and bioavailability in Sprague-Dawley rats.