Amino acid derivatives

摘要

N-Acyl- alpha -aminocarboxylic acid derivatives of the formula <IMAGE> I wherein L, R' to R''' and Q have the definitions given in the specification, are for the treatment or prophylaxis of illnesses which are caused by the binding of adhesive proteins to blood platelets, by blood platelet aggregation and cell-cell adhesion. They are manufactured by cleaving off protecting groups in corresponding protected compounds or by converting the cyano group into the amidino group in corresponding nitriles.