5,6-Dihydropyran-2-ones Possessing Various Sulfonyl Functionalities: Potent Nonpeptidic Inhibitors of HIV Protease
摘要:
On the basis of previous SAR findings and molecular modeling studies, a series of compounds were synthesized which possessed various sulfonyl moieties substituted at the 4-position of the C-3 phenyl ring substituent of the dihydropyran-2-one ring system. The sulfonyl substituents were added in an attempt to fill the additional S-3' pocket and thereby produce increasingly potent inhibitors of the target enzyme. Racemic and enantiomerically resolved varieties of selected compounds were synthesized. All analogues in the study displayed decent binding affinity to HIV protease, and several compounds were shown to possess very good antiviral efficacy and safety margins. X-ray crystallographic structures confirmed that the sulfonamide and sulfonate moieties were filling the S3' pocket of the enzyme. However, the additional substituent did not provide improved enzymatic inhibitory or antiviral activity as compared to the resolved unsubstituted aniline. The addition of the sulfonyl moiety substitution does not appear to provide favorable pharamacokinectic parameters. Selected inhibitors were tested for antiviral activity in clinical isolates and exhibited similar antiviral activity against all of the HIV-1 strains tested as they did against the wild-type HIV-1, In addition, the inhibitors exhibited good antiviral efficacies against HIV-1 strains that displayed resistance to the currently marketed protease inhibitors.
Inhibitors of hepatitis C virus RNA-dependent RNA polymerase, and compositions and treatments using the same
申请人:Agouron Pharmaceuticals, Inc.
公开号:US20040023958A1
公开(公告)日:2004-02-05
Compounds of formula I are hepatitis C virus (HCV) RNA-dependent RNA polymerase (RdRp) inhibitors, and are useful in therapeutic and prophylactic treatment of persons infected with hepatitis C virus.
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式 I 的化合物是丙型肝炎病毒(HCV)RNA 依赖性 RNA 聚合酶(RdRp)抑制剂,可用于丙型肝炎病毒感染者的治疗和预防。
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