You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the integrin antagonist class of molecules. Use the above information to create a molecule.
user
NNC=Nc1cccc(S(=O)(=O)Nc2cccc(C(CC(=O)O)c3cc(Cl)cc(Cl)c3)c2)c1
assistant