[EN] PROCESS FOR THE PREPARATION OF (S)-2-AMINO-5-CYCLOPROPYL-4,4-DIFLUOROPENTANOIC ACID AND ALKYL ESTERS AND ACID SALTS THEREOF [FR] PROCÉDÉ DE PRÉPARATION DE L'ACIDE (S)-2- AMINO-5-CYCLOPROPYL-4,4-DIFLUOROPENTANOÏQUE ET DE SES ESTERS ALKYLIQUES ET SELS D'ACIDES
[EN] PROCESS FOR THE PREPARATION OF (S)-2-AMINO-5-CYCLOPROPYL-4,4-DIFLUOROPENTANOIC ACID AND ALKYL ESTERS AND ACID SALTS THEREOF [FR] PROCÉDÉ DE PRÉPARATION DE L'ACIDE (S)-2- AMINO-5-CYCLOPROPYL-4,4-DIFLUOROPENTANOÏQUE ET DE SES ESTERS ALKYLIQUES ET SELS D'ACIDES
PROCESS FOR THE PREPARATION OF (S)-2-AMINO-5-CYCLOPROPYL-4,4-DIFLUOROPENTANOIC ACID AND ALKYL ESTERS AND ACID SALTS THEREOF
申请人:Hart Barry
公开号:US20110046406A1
公开(公告)日:2011-02-24
The present invention relates to a process for the preparation of alkyl esters of (S)-2-amino-5-cyclopropyl-4,4-difluoropentanoic acid, which are intermediates useful in the synthesis of (S)-N-(1-cyanocyclopropyl)-5-cyclopropyl-4,4-difluoro-2-(S)-2,2,2-trifluoro-1-(4-fluorophenyl)ethylamino)pentanamide and related compounds, which are compounds that are cysteine protease inhibitors.
Process for the preparation of (S)-2-amino-5-cyclopropyl-4,4-difluoropentanoic acid and alkyl esters and acid salts thereof
申请人:ViroBay, Inc.
公开号:US08324417B2
公开(公告)日:2012-12-04
The present invention relates to a process for the preparation of alkyl esters of (S)-2-amino-5-cyclopropyl-4,4-difluoropentanoic acid, which are intermediates useful in the synthesis of (S)—N-(1-cyanocyclopropyl)-5-cyclopropyl-4,4-difluoro-2-((S)-2,2,2-trifluoro-1-(4-fluorophenyl)ethylamino)pentanamide and related compounds, which are compounds that are cysteine protease inhibitors.
[EN] PROCESS FOR THE PREPARATION OF (S)-2-AMINO-5-CYCLOPROPYL-4,4-DIFLUOROPENTANOIC ACID AND ALKYL ESTERS AND ACID SALTS THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE L'ACIDE (S)-2- AMINO-5-CYCLOPROPYL-4,4-DIFLUOROPENTANOÏQUE ET DE SES ESTERS ALKYLIQUES ET SELS D'ACIDES