PROCESS FOR THE PREPARATION OF N,S-DIACETYL CYSTEINE HAVING MUCOLYTIC AND SECRETOLYTIC PROPERTIES

摘要

The invention relates to N,S-di-(acetyl)cysteine of the formula The invention also relates to a process for the preparation of this compound, in which cysteine hydrochloride or cysteine is dissolved in an alkali metal hydroxide solution at temperatures of not over 15 DEG C in a manner known per se and reacted with acetic anhydride at temperatures from -5 to +5 DEG C, and to medicaments containing this compound, in particular having mucolytic action.