You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is both a nutrient and a waste product. Please represent the molecule in SMILES.
user
COc1cc(CCC(=O)O)ccc1OC1OC(C(=O)O)C(O)C(O)C1O
assistant