Using CCOC(=O)[C@H](CCCCC1CCNCC1)N[C@@H](C)C(=O)N(CC(=O)O)C1Cc2ccccc2C1 to produce C[C@H](N[C@@H](CCCCC1CCNCC1)C(=O)O)C(=O)N(CC(=O)O)C1Cc2ccccc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.