You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a cancer treatment and belongs to the anti tumor class of molecules, with the characteristic of being anti tumor agent.
user
CCC(=O)OC(CC(CC(OCc1ccc(OC)cc1)C(C)=CC(CC)COCOCCOC)OC)C(C)(C)c1cccc(Br)c1
assistant