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 both a protease inhibitor and a serine protease inhibitor. Please represent the molecule in SMILES.
user
CCCC(NC(=O)C1CC(OC(=O)N2CCc3ccccc3C2)CN1C(=O)C(NC(=O)C(NC(=O)CCCCC(=O)O)C(C)C)C(C)C)C(=O)C(=O)NCC(=O)O
assistant