NOVEL GLUTAMIC ACID DERIVATIVES AND SALTS, MANUFACTURE, USE AS DRUG AND COMPOSITION

摘要

New glutamic acid derivatives and their salts with the acids of formula (I): …… in the form of separated isomers or of mixtures,… R1 = H, amino acid or peptide in which the amine may be esterified, or a saturated or unsaturated C6-C24 aliphatic acid residue,… R3 = OH, C1-C5 alkoxy, or amino acid in which the amine may be substituted by a C1-C5 alkyl,… R5 = H or C1-C5 alkyl, …… R2 = H, amino acid or peptide,… R4 = OH, C1-C5 alkoxy, or amino acid in which the amine may be substituted by a C1-C5 alkyl, …… X and Y = H or bond with U.