Using COc1ccc([C@H](CO)NC(=O)[C@H](CCCNC(=O)OCc2ccccc2)NC(=O)C(c2ccccc2)c2ccccc2)cc1 to produce COc1ccc([C@H](CO)NC(=O)[C@H](CCCN)NC(=O)C(c2ccccc2)c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.