1042695-87-3Relevant academic research and scientific papers
PROCESSES AND INTERMEDIATES FOR PREPARING A MACROCYCLIC PROTEASE INHIBITOR OF HCV
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, (2017/01/09)
Disclosed is a process for the preparation of certain intermediates, e.g. those in the scheme below: which intermediates and processes are useful in the preparation of the macrocyclic HVC inhibitor Simeprevir.
PROCESSES AND INTERMEDIATES FOR PREPARING A MACROCYCLIC PROTEASE INHIBITOR OF HCV
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, (2011/10/10)
A process for preparing [(1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, by the resolution of racemic 4-oxo-1,2-cyclopentanedicarboxylic acid (V), said process comprising: (a) reacting 4-oxo-1,2-cyclopentanedicarboxylic acid (V) with brucine or (1R,2S)-(-)- ephedrine, thus preparing the bis-brucine or bis-(1R,2S)-(-)-ephedrine salt of (V), and (b) precipitating selectively the bis-brucine or bis-(1R,2S)-(-)-ephedrine salt of (1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, while the bis-brucine or bis- (1R,2S)-(-)-ephedrine salt of [(1S,2S)-4-oxo-1,2-cyclopentanedicarboxylic acid stays in solution; (c) liberating the acid II by removal of brucine or (1R,2S)-(-)-ephedrine from the precipitated salt obtained in step (b).
PROCESSES AND INTERMEDIATES FOR PREPARING A MACROCYCLIC PROTEASE INHIBITOR OF HCV
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Page/Page column 22, (2010/07/09)
The present invention relates to the cinchonidine salt useful in the preparation of intermediates for preparing a macrocyclic HCV inhibitor, as well as processes involving this salt.
PROCESSES AND INTERMEDIATES FOR PREPARING A MACROCYCLIC PROTEASE INHIBITOR OF HCV
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Page/Page column 35-36, (2008/12/07)
The present invention relates to synthesis procedures and intermediates of a compound offormula: (XVII) and the salts thereof.
