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 cancer treatment.
user
Cn1cc(-c2nc3c4cc(F)ccc4[nH]c(=O)n3n2)cn1
assistant