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: The molecule is a pain treatment.
user
CC(=O)C(N)CC(=O)NC1OC(CO)C(OC2OC(CO)C(O)C(O)C2O)C(O)C1O
assistant