Process for making optically active .alpha.-amino ketones and selected novel optically active .alpha.-amino ketones

   
   

The invention includes selected novel optically active .alpha.-amino ketones which either are themselves useful or are intermediates for the preparation of known ketomethylene pseudopeptides useful as antibiotics, antibiotic enhancers, or enzyme inhibitors. Further, the present invention provides a method for dehydrogenation/asymmetrical hydrogenation to obtain essentially pure antipodes of ketomethylene pseudopeptides having two chiral centers.

A invenção inclui cetonas ativas selecionadas da novela ótica as alpha.-amino que são elas mesmas úteis ou são os intermediários para a preparação dos pseudopeptides sabidos do ketomethylene úteis como antibióticos, enhancers antibióticos, ou inibidores de enzyme. Mais mais, a invenção atual fornece um método para o hydrogenation de dehydrogenation/asymmetrical para obter essencialmente antipodes puros dos pseudopeptides do ketomethylene que têm dois centros chiral.

 
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