You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is both a nutrient and a waste product.
user
O=C(O)C1OC(Oc2ccc(-c3coc4cc(O)cc(O)c4c3=O)cc2)C(O)C(O)C1O
assistant