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 addiction treatment. Please represent the molecule in SMILES.
user
O=C(CCc1ccc(Cl)cc1Cl)OC12CCC(=O)C3Oc4c(O)ccc5c4C31CCN(CC1CC1)C2C5
assistant