You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a cancer treatment.
user
CNCc1cc(C)c(-c2cc(-c3cnc(N4CCOCC4)nc3)n[nH]2)c(F)c1
assistant