.ALPHA.-AMINODICARBOXYLIC ACID DERIVATIVES, THEIR PREPARATION AND THEIR USE

摘要

Disclosed are .alpha.-aminodicarboxylic acid derivatives of the formula: <IMG> where X is C2-C6-alkylene, -CH=CH- or unacetylated or acetylated -CH2-CHOH-, -CHOH-CHOH- or -CH2-CHNH2-, Y and Z are each an aliphatic hydrocarbon radical of 8 to 30 carbon atoms and n is 1 or 2, and their sodium, potassium and ammonium salts. Also disclosed in a process for the preparation of these compounds that are biodegradable, of low toxicity and useful for the preparation of emulsions, microemulsions and gels. Further disclosed is the use of these compounds as carriers for drugs in the pharmaceutical field.