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
CCOC(=O)C(C)(C)CC(C)(C)C=C([N+](=O)[O-])C(C)(S)CC(C)(C)C(=O)OCC
assistant