You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: The molecule is a thrombin inhibitor and belongs to the anti thrombotic class of molecules.
user
O=C(NCc1ccccc1F)C1CCc2cnc(NCC(F)(F)c3ccc[n+]([O-])c3)c(=O)n21
assistant