You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: It belongs to the cancer treatment class of molecules. Please write the SMILES representation of it.
user
COC(=O)C1NC(CC(C)(C)C)C(C#N)(c2ccc(Cl)cc2F)C1c1cccc(Cl)c1F
assistant