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 cancer treatment class of molecules.
user
CN1CN(c2c(Cl)cccc2Cl)C(=O)c2cnc(Nc3ccc4c(c3)C3CCC(C4)N3)nc21
assistant