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 hiv protease inhibitor.
user
O=C(CC(c1ccc(F)cc1)c1cc(F)cc(F)c1)Nc1cncc(F)c1CCC1CNCCN1
assistant