PROCEDURES FOR PREPARING AND INSULATING OR PURIFICATING DIPEPTIDAMIDE SWEETS, AND IN THE ESSENTIAL CLEAN SALTS OF SUCH DIPEPTIDAMIDES WITH AROMATIC SULPHONIC ACIDS

摘要

Aromatic sulfonic acid salts of certain dipeptide sweeteners which are L-aspartyl-D-alaninamides or L-aspartyl-D-serinamides, each substituted on amide nitrogen with an organic radical having a highly branched carbon skeleton; the process for preparing said salts by crystallization; and utilization of this crystallization process in processes for the preparation, isolation and purification of said amides.