You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: It belongs to the cancer treatment class of molecules.
user
Cn1c(=O)n(C2CCC(=O)NC2=O)c2cc(F)c(N3CCC(C4CCN(CC5CCN(C(=O)OC(C)(C)C)CC5)CC4)CC3)cc21
assistant