You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a nutrient. Please write the SMILES representation of it.
user
O=C1OC2C3C4=C1C(c1c(O)c(O)c(O)c5c1C(=O)OC2C1OC(=O)c2cc(O)c(O)c(O)c2-c2c(cc(O)c(O)c2O)C(=O)OCC1OC(=O)c1cc-5c(O)c(O)c1O)C1(OC(=O)C2(O)C(=O)C=C(C5Oc6c(c(O)cc(O)c63)CC5O)C21)C4=O
assistant