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 both a waste product and a nutrient.
user
O=C(O)C1OC(Oc2ccc(C3Oc4cc(O)cc(O)c4CC3O)cc2O)C(O)C(O)C1O
assistant