You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): The molecule is a plasma kallikrein inhibitor.
user
COc1ncc(C#N)c(CNC(=O)c2cn(Cc3cn4cc(C5CC5)ccc4n3)nn2)c1F
assistant