Development of an Aryloxazole Class of Hepatitis C Virus Inhibitors Targeting the Entry Stage of the Viral Replication Cycle
摘要:
Reliance on hepatitis C virus (HCV) replicon systems and protein-based screening assays has led to treatments that target HCV viral replication proteins. The model does not encompass other viral replication cycle steps such as entry, processing, assembly and secretion, or viral host factors. We previously applied a phenotypic high-throughput screening platform based on an infectious HCV system and discovered an aryloxazole-based anti-HCV hit. Structure-activity relationship studies revealed several compounds exhibiting EC50 values below 100 nM. Lead compounds showed inhibition of the HCV pseudoparticle entry, suggesting a different mode of action from existing HCV drugs. Hit 7a and lead 7ii both showed synergistic effects in combination with existing HCV drugs. In vivo pharmacokinetics studies of Iii showed high liver distribution and long half-life without obvious hepatotoxicity. The lead compounds are promising as preclinical candidates for the treatment of HCV infection and as molecular probes to study HCV pathogenesis.
SUBSTITUTED ACID DERIVATIVES USEFUL AS ANTIDIABETIC AND ANTIOBESITY AGENTS AND METHOD
申请人:Cheng T.W. Peter
公开号:US20080009534A1
公开(公告)日:2008-01-10
Compounds are provided which have the structure of Formula (I):
wherein R is hydrogen or C
1
-C
4
alkyl; and each of R
1
and R
2
is independently hydrogen, C
1
-C
4
alkyl, halo or C
1
-C
4
alkoxy, and salts thereof, which compounds are useful as antidiabetic, hypolipidemic, and antiobesity agents.
Process for the preparation of the PPAR alpha agonist NS-220
申请人:Hartung Thomas
公开号:US20070197615A1
公开(公告)日:2007-08-23
The present invention is concerned with a novel process for the preparation of compounds of formula (I)
wherein R
1
and R
2
are as defined in the description and claims. The compounds of formula (I) are pharmaceutically active substances.
The present application relates to novel substituted aryloxazole derivatives, a method for the production thereof, the use thereof for the treatment and/or prophylaxis of diseases and the use thereof for the production of drugs for the treatment and/or prophylaxis of diseases, preferably for the treatment and/or prevention of cardiovascular and metabolic disorders.
METHOD FOR THE PREPARATION OF OXAZOLES BY CONDENSING AROMATIC ALDEHYDES WITH ALPHA-KETOXIMES TO FORM N-OXIDES AND REACTING SAME WITH ACTIVATIVED ACID DERIVATIVES
申请人:HOLLA Wolfgang
公开号:US20080058529A1
公开(公告)日:2008-03-06
The present invention is comprised of improved methods in the preparation of oxazoles which results in higher yields with less impurities and contaminants. Oxazoles constitute valuable intermediates in the synthesis of pharmaceutically active substances such as, for example peroxisome proliferator activated receptor (PPAR) agonists which are pharmaceutical actives which can have a positive influence on both lipid and glucose metabolism.
NOVEL INTERMEDIATE COMPOUNDS USEFUL IN THE PREPARATION OF OXAZOLES AND PHARMACEUTICAL ACTIVES FOR THE REGULATION OF LIPID AND GLUCOSE METABOLISM
申请人:HOLLA Wolfgang
公开号:US20080114035A1
公开(公告)日:2008-05-15
The present invention is directed to compounds of Formula III
wherein the R1-R7 groups or substituents are defined herein. The present invention also comprises improved methods in the preparation of oxazoles in which the compounds of Formula III are intermediates and which results in higher yields with less impurities and contaminants. Oxazoles constitute valuable intermediates in the synthesis of pharmaceutically active substances such as, for example peroxisome proliferator activated receptor (PPAR) agonists which are pharmaceutical actives which can have a positive influence on both lipid and glucose metabolism.