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
CC1(C)Oc2cc(O)c3c(c2CC1O)OCC(c1ccc(O)cc1O)C3=O
assistant