[EN] PROCESS FOR THE PREPARATION AND ISOLATION OF (S)-3-AMINO-N-CYCLOPROPYL-2,2-DIALKOXYHEXANAMIDE AND (S)-TERT-BUTYL(1-(CYCLOPROPYLAMINO)-2,2-DIALKOXY-1-OXOHEXAN-3-YL)CARBAMATE AND USE THEREOF FOR THE PREPARATION OF TELAPREVIR<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION ET L'ISOLEMENT DE (S)-3-AMINO-N-CYCLOPROPYL-2,2-DIALCOXYHEXANAMIDE ET DE (S)-(1-(CYCLOPROPYLAMINO)-2,2-DIALCOXY-1-OXOHEXAN-3-YL)CARBAMATE DE TERT-BUTYLE ET SON UTILISATION POUR LA PRÉPARATION DE TÉLAPRÉVIR
申请人:SANDOZ AG
公开号:WO2015036522A1
公开(公告)日:2015-03-19
The present invention refers to processes for preparing (1S,3aR,6aS)-2-[(2Sv)-2-[[(2S)-2- Cyclohexyl-2-(pyrazine-2-carbonylamino)acetyl]amino]-3,3-dimethylbutanoyl]-N-[(3S)-1-(cyclopropylamino)-1,2-dioxohexan-3-yl]-3,3a,4,5,6,6a-hexahydro-1H-cyclopenta[c] pyrrol-1-carboxamid via novel cyclic anhydrides as intermediates. The cyclic anhydrides can easily be reacted with cyclopropylamine to provide the intermediates (S)-3-Amino-N-cyclopropyl-2,2-dialkoxyhexanamide and (S)-tert-Butyl (1-(cyclopropylamino)-2,2-dialkoxy-1-oxohexan-3-yl)carbamate. The present invention also refers to intermediates of the process for preparing telaprevir and processes for the synthesis of said intermediates.
本发明涉及使用新型环酐中间体制备(1S,3aR,6aS)-2-[(2Sv)-2-[[(2S)-2-环己基-2-(吡嗪-2-羰基氨基)乙酰]氨基]-3,3-二甲基丁酰]-N-[(3S)-1-(环丙基氨基)-1,2-二氧己烷-3-基]-3,3a,4,5,6,6a-六氢-1H-环戊[c]吡咯-1-羧酰胺的方法。这些环酐中间体可以轻易地与环丙基胺反应,提供中间体(S)-3-氨基-N-环丙基-2,2-二烷氧基己酰胺和(S)-叔丁基(1-(环丙基氨基)-2,2-二烷氧基-1-氧代己烷-3-基)氨基甲酸酯。本发明还涉及用于制备特拉普雷韦中间体的方法以及合成该中间体的过程。