You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: It belongs to the integrin antagonist class of molecules. Please represent the molecule in SMILES.
user
Cc1ccn(C(CC(C)C)C(=O)NC(CC(=O)O)c2ccnc(-c3c(C)cccc3C)c2)c(=O)c1
assistant