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 thrombin inhibitor, a serine protease inhibitor, a protease inhibitor, and anti thrombotic.
user
O=C(CC(C1CCCCC1)C(F)(F)F)N1C(=O)OCC1Cc1ccccc1
assistant