PAT Application in the Expedited Development of a Three-Step, One-Stage Synthesis of the Dipeptide Intermediate of HCV Protease Inhibitor Faldaprevir
摘要:
A concise scalable synthesis of a chiral dipeptide acid, key substructure of the HCV protease inhibitor faldaprevir, has been developed. A green process with an E-factor of 9.2 was achieved utilizing process analytical technology (PAT) to allow effective processing of multiple-steps in a one-stage operation. Mixed anhydride/oxazolone formation, peptide coupling, saponification, and then crystallization of the desired dipeptide acid were completed within 10 h. MultiMaxIR was used to detect the formation and consumption rates of key intermediates and to provide initial safety data which was subsequently confirmed by more comprehensive process safety testing. Further kinetic analysis was performed to determine the range of operability space to ensure conditions for a robust process.
[EN] HEPATITIS C VIRUS INHIBITORS<br/>[FR] INHIBITEURS DU VIRUS DE L'HEPATITE C
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2003099274A1
公开(公告)日:2003-12-04
Hepatitis C virus inhibitors are disclosed having the general formula:(I) wherein R1, R2, R3, R', B, Y and X are described in the description. Compositions comprising the compounds and methods for using the compounds toinhibit HCV are also disclosed.
[EN] POLYHETEROCYCLIC COMPOUNDS HIGHLY POTENT AS HCV INHIBITORS<br/>[FR] COMPOSÉS POLYHÉTÉROCYCLIQUES HAUTEMENT PUISSANTS EN TANT QU'INHIBITEURS DU VHC
申请人:PHARMA LTD AB
公开号:WO2011091757A1
公开(公告)日:2011-08-04
The present invention discloses novel polyheterocyclic based compounds having general formula Ia-Ib and IIa-IIb, and preparation methods and uses thereof. These compounds are highly effective for inhibition of hepatitis C virus (HCV). The present invention is also related to treatment of HCV infection by the polyheterocyclic based HCV inhibitory compounds and compositions thereof, and to therapeutic methods thereof.
Substituted cycloalkyl P1' hepatitis C virus inhibitors
申请人:——
公开号:US20040077551A1
公开(公告)日:2004-04-22
The present invention relates to tripeptide compounds, compositions and methods for the treatment of hepatitis C virus (HCV) infection. In particular, the present invention provides novel tripeptide analogs, pharmaceutical compositions containing such analogs and methods for using these analogs in the treatment of HCV infection.
[EN] HEPATITIS C INHIBITOR PEPTIDE ANALOGS<br/>[FR] ANALOGUES PEPTIDIQUES D'INHIBITEURS DE L'HEPATITE C
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2006000085A1
公开(公告)日:2006-01-05
The invention relates to compounds of formula (I) wherein R', R2, R3, R4, R5, R6, Y, n and m are as defined herein. The compounds are useful for the treatment and prevention of hepatitis C viral infections in mammals by inhibiting HCV NS3 protease. The invention further relates to azalactone compounds of the formula (III) which can be reacted with an amide anion to produce the compounds of formula (I).
[EN] HEPATITIS C INHIBITOR COMPOUNDS<br/>[FR] COMPOSES INHIBITEURS DE L'HEPATITE C
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2004103996A1
公开(公告)日:2004-12-02
Compounds of formula (I): wherein B, X, R3, L0, L1, L2, R2, R1 and RC are defined herein. The compounds are useful as inhibitors of HCV NS3 protease for the treatment of hepatitis C viral infection.