You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is anti cancer.
user
C=C1CC2C(CCC3(C)C(OC(=O)CCC4CCCC4)CCC23)C2(C)C=CC(=O)C=C12
assistant