You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It impacts pain treatment.
user
CCC(C(=O)O)N1C(=O)C2(COc3cc4c(cc32)CC(C)(C)O4)c2c(Br)cccc21
assistant