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 pain treatment. Please represent the molecule in SMILES.
user
C=CC(Cl)=CC(Cl)=CCS(=O)(=O)c1ccc2[nH]nc(NC(=O)c3ccc(N4CCN(C)CC4)cc3NC3CCOCC3)c2n1
assistant