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: It belongs to the tumor treatment class of molecules.
user
NC1CC(CCC(=O)N2CCN(c3ncc(C(F)(F)F)cn3)CC2)N(c2cc(C(F)(F)F)c(=O)[nH]n2)C1
assistant