You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the cancer treatment class of molecules. Use the above information to create a molecule.
user
CN1CCC(Nc2cccc3c2cc(-c2nnc(CNC(=O)C4CC4)s2)n3CC(F)(F)F)C(F)C1
assistant