You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a anti retroviral.
user
O=C1CN(C(=O)c2cc(-c3cccc(Cl)c3)c(-c3cc(F)cc(Cl)c3)s2)CN1
assistant