You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is pain treatment. Please write the SMILES representation of it.
user
O=C(O)C(Cc1cccc(O)c1)Nc1cc(-c2ccc(OCc3ccccc3)cc2)ncn1
assistant