You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: It belongs to the cancer treatment class of molecules. Please represent the molecule in SMILES.
user
NS(=O)(=O)c1ccc(C=CCN2C(=O)SC(=C3CCC(F)(F)CC3)C2=O)cc1
assistant