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 a anti tumor.
user
CCCn1ncc(SCc2ccc(C(C)(C)C)cc2)c(Cl)c1=O
assistant