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 a nutrient. Please represent the molecule in SMILES.
user
C=C1C(=O)OC2C1C(OC(=O)C1(C)OC1C)C(OC(C)=O)C(C(=O)OC)=CCCC1(C)OC21
assistant