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 belongs to the pain treatment class of molecules.
user
Cc1cc(N2CCC(CNC(=O)c3ccc4c(c3)C(N3C=C(C(=O)O)C=NC3)CC4)CC2)cc(C)n1
assistant