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: It belongs to the anti tumor class of molecules. Please write the SMILES representation of it.
user
O=C(O)CCCC=CC=C1C(=O)C=CC1C=CC(O)C1CCCCC1
assistant