[EN] METHODS FOR THE PREPARATION OF BENZOXAZOLE SULFONAMIDE COMPOUNDS AND INTERMEDIATES THEREOF [FR] PROCEDE POUR LA PREPARATION DE COMPOSES SULFONAMIDE DE BENZOXAZOLE ET LEURS INTERMEDIAIRES
[EN] METHODS FOR THE PREPARATION OF BENZOXAZOLE SULFONAMIDE COMPOUNDS AND INTERMEDIATES THEREOF [FR] PROCEDE POUR LA PREPARATION DE COMPOSES SULFONAMIDE DE BENZOXAZOLE ET LEURS INTERMEDIAIRES
Methods for the preparation of benzoxazole sulfonamide compounds and intermediates thereof
申请人:De Kock Augustinus Herman
公开号:US20070123574A1
公开(公告)日:2007-05-31
The present invention relates to methods for the preparation of benzoxazole sulfonamide compounds as well as novel intermediates for use in said method. More in particular the invention relates to methods for the preparation of 2-amino-benzoxazole sulfonamide compounds which make use of 2-mercapto-benzoxazole sulfonamide intermediates, more in particular methods employing the intermediate 1-Benzyl-2-hydroxy-3-[isobutyl-(2-methylsulfanyl-benzoxazole-6-sulfonyl)-amino]-propyl)-carbamic ester, and to methods amenable to industrial scaling up. Said benzoxazole sulfonamide compounds are particularly useful as HIV protease inhibitors.
[EN] METHODS FOR THE PREPARATION OF BENZOXAZOLE SULFONAMIDE COMPOUNDS AND INTERMEDIATES THEREOF<br/>[FR] PROCEDE POUR LA PREPARATION DE COMPOSES SULFONAMIDE DE BENZOXAZOLE ET LEURS INTERMEDIAIRES
申请人:TIBOTEC PHARM LTD
公开号:WO2005030739A1
公开(公告)日:2005-04-07
The present invention relates to methods for the preparation of benzoxazole sulfonamide compounds of formula (9) as well as novel intermediates of formula (6) for use in said method. More in particular the invention relates to methods for the Preparation of 2-amino-benzoxazole sulfonamide compounds which make use of 2-mercapto-benzoxazole sulfonamide intermediates, more in particular methods employing the intermediate 1-Benzy1-2-hydroxy-3-[isobutyl(2-methylsulfanyl-benzoxazole-6-sulfonyl)-amino)-propyl)-carbamic ester, and to methods amenable to industrial scaling up. Said benzoxazole sulfonamide compounds are particularly useful as HIV protease inhibitors. The substituents are defined in the claims.