[EN] QUINOXALINE-CONTAINING COMPOUNDS AS HEPATITIS C VIRUS INHIBITORS<br/>[FR] COMPOSÉS CONTENANT DE LA QUINOXALINE EN TANT QU'INHIBITEURS DU VIRUS DE L'HÉPATITE C
申请人:ENANTA PHARM INC
公开号:WO2009064975A1
公开(公告)日:2009-05-22
The present invention discloses compounds of formula I and II or pharmaceutically acceptable salts, esters, or prodrugs thereof which inhibit serine protease activity, particularly the activity of hepatitis C virus (HCV) NS3-NS4A protease. Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
Processes for Producing Optically Active 1-Substituted 2-Methylpyrrolidine and Intermediate Therefor
申请人:Nishiyama Akira
公开号:US20070292926A1
公开(公告)日:2007-12-20
The present invention relates to a process for producing an optically active 1,4-pentanediol by asymmetrically reducing 5-hydroxy-2-pentanone, which is easily available at low cost. The present invention also relates to a process for producing an optically active 1-substituted 2-methylpyrrolidine including sulfonylating the optically active 1,4-pentanediol to convert it to an optically active sulfonate compound, and reacting the compound with an amine. According to the processes of the present invention, an optically active 1,4-pentanediol and an optically active 1-substituted 2-methylpyrrolidine, which are useful as an intermediate for medicines and an intermediate for agricultural chemicals, can be simply produced from an inexpensive starting material.
Among all metathesisreactions known to date in organic chemistry, the metathesis of multiple bonds such as alkenes and alkynes has evolved into one of the most powerful methods to construct molecular complexity. In contrast, metathesisreactions involving single bonds are scarce and far less developed, particularly in the context of synthetically valuable ring‐closing reactions. Herein, we report