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
COC(=O)c1cc(C)c(OCCNC(=O)OC(C)(C)C)c(N)c1.COC(=O)c1cc(C)c(OCCNC(=O)OC(C)(C)C)c([N+](=O)[O-])c1
assistant