N- acyl piperidinylcarbonyl amino acids, and glycoprotein IIB / IIIa antagonists and their use as fibrinogen platelet aggregation inhibitors

(57) [Summary] The present invention is expressed by the following equation: (Wherein each symbol is as defined herein) is indicated by a glycoprotein IIb / IIIa antagonist is a binding inhibitor with it and fibrinogen and platelet platelet aggregation inhibitor β- alanine derivatives and their pharmaceutically acceptable salts, to a process for the preparation of these compounds, to a method of prevention and / or treatment of diseases of the human or animal shown in the pharmaceutical compositions and herein comprising these compounds.