You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a protease inhibitor. Please represent the molecule in SMILES.
user
CN1C(=O)CC(C)(c2cc(-c3ccc(F)c(C#N)c3)c3scc(Br)c3c2)N=C1N
assistant