You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a anti tumor agent and is both cancer treatment and belongs to the anti tumor and anti biotic classes of molecules. Use the above information to create a molecule.
user
CCC(=O)OCC(CCCC(=O)O)(COC(=O)CC)C(=O)O
assistant