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: The molecule is a integrin antagonist. Please represent the molecule in SMILES.
user
Cn1nc(CC(CC(=O)O)c2ccc3c(c2)OCCO3)cc1OCCc1ccc2c(n1)NCCC2
assistant