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 anti cancer.
user
CCC(F)(F)c1cccc(NC(=O)C2C(=O)N(c3ccc4ccn(Cc5ccccc5)c4c3)N=C2C)c1
assistant