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 chemokine receptor antagonist. Please represent the molecule in SMILES.
user
CN(CCCn1c(=N)n(CC(=O)c2ccccc2)c2ccccc21)C(=O)c1ccccc1
assistant