Using CCCC[C@H](NC(=O)OCc1ccccc1)C(OC(=O)c1ccccc1)C(=O)N[C@H](C)c1ccccc1 to produce CCCC[C@H](N)C(O)C(=O)N[C@H](C)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.