Process for producing optically active...

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 213/75 (2006.01) C07C 213/02 (2006.01) C07C 215/16 (2006.01) C07C 231/02 (2006.01) C07C 231/10 (2006.01) C07C 231/18 (2006.01) C07C 235/16 (2006.01) C07D 213/74 (2006.01) C07D 317/34 (2006.01)

Patent

CA 2439208

It is intended to provide a process whereby optically active N-aryl-1-amino-2- propanol derivatives, which are useful as drug intermediates, can be conveniently produced from less expensive materials. An optically active N- aryl-1-amino-2-propanol derivative is produced by converting an optically active lactic acid ester derivative or an optically active lactic acid acetal derivative which can be obtained at a low price into an optically active N- aryllactamide by reacting with an arylamine derivative and then treating it with a reducing agent.

L'invention concerne un procédé permettant de produire commodément, à partir de matériaux moins onéreux, des dérivés de N-aryl-1-amino-2-propanol, lesquels sont utilisés comme produits intermédiaires pour la fabrication de médicaments. Un dérivé de N-aryl-1-amino-2-propanol optiquement actif est obtenu en transformant un dérivé d'ester d'acide lactique optiquement actif ou un dérivé acétal d'acide lactique optiquement actif lesquels peuvent être obtenus à bas prix en un N-aryllactamide optiquement actif, par réaction avec un dérivé arylamine suivie d'un traitement du produit par un agent réducteur.

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