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=C1CCC2C(C3C1CCC3(C)C(CC(C)C)c1c(O)c(C=O)c(O)c(C=O)c1O)C2(C)C
assistant