You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a nutrient.
user
CC(=O)OC1CC(OC2OC(CO)C(O)C(O)C2O)CC2=CCC3C4CCC(C(C)(O)C5CC(C)=C(C)C(=O)O5)C4(C)CCC3C21C
assistant