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 a cancer treatment. Please write the SMILES representation of it.
user
O=C(Nc1c[nH]c(=O)c(-c2cc3cc(CN4CCC(F)C4)ccc3[nH]2)c1)c1cnn(CC2=CCCC=C2)c1
assistant