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
Nc1ccc(C2(F)CCN(C(=O)c3ccc(C4CCC4)c(NC(=O)NC4CCOC4)c3)CC2)cc1
assistant