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 pain treatment. Please represent the molecule in SMILES.
user
CN(c1cc(C(=O)Nc2ccc(C(C)(C)C)cc2)ccc1Oc1ccccc1)c1ncccc1Cl
assistant