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.
user
CCOC(=O)CN(c1ccc2c(c1)nc(COc1ccc(C(=N)N)cc1)n2C)S(=O)(=O)c1ccccc1
assistant