PROCESS FOR THE STEREOSPECIFIC ESTERIFICATION OF A MIXTURE OF AMINO ACIDS BY REACTION OF SAID MIXTURE IN SOLUTION IN ALCOHOL OF ESTERIFICATION IN THE PRESENCE OF PAPAINE

摘要

P THE PRESENT INVENTION CONCERNS A PROCESS OF STEREOSPECIFIC ESTERIFICATION OF A MIXTURE OF AMINO ACIDS OF WHICH ONE IS IN THE FORM L AND THE OTHER IN THE FORM D, CHARACTERIZED IN THAT: /P P - ESTERIFICATION IS CARRIED OUT ON BLOCKED AMINO ACIDS, THE SAID BLOCKED AMINOACIDS ARE IN SOLUTION IN THE ESTERIFICATION ALCOHOL; /P P - ESTERIFICATION IS CARRIED OUT IN THE PRESENCE OF A LOW QUANTITY OF WATER AND AT A pH BETWEEN APPROXIMATELY 3 AND 6, AND WE OPERATE IN THE PRESENCE OF PAPAINE. /P