Using NC(=O)Cc1ccc(CNC(=O)[C@@H](CCCNC(=O)OCc2ccccc2)NC(=O)c2ccc3ccccc3c2)cc1 to produce NCCC[C@@H](NC(=O)c1ccc2ccccc2c1)C(=O)NCc1ccc(CC(N)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.