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: The molecule is cancer treatment. Please write the SMILES representation of it.
user
O=c1ccc(-c2ccncc2Nc2ncc3ccc(-c4c(F)cccc4F)nn23)c[nH]1
assistant