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 serine protease inhibitor.
user
CC(C)C(C(=O)NC(CCC(=O)O)C(=O)O)N(C)Cc1ccc(C(=O)Oc2ccc(C(=N)N)cc2F)s1
assistant