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 a thrombin inhibitor. Please represent the molecule in SMILES.
user
CC(=O)NCCC1CCN(C(=O)C(Cc2nc3ccccc3s2)NS(=O)(=O)c2cccc3c2NCC(C)(C)C3)CC1
assistant