Using CC(C)C[C@H](NC(=O)[C@H](C)N)C(O)C(=O)OC(C)C, O=C(O)C(CC(=O)N1CCOCC1)Cc1cccc2ccccc12 to produce CC(C)C[C@H](NC(=O)[C@H](C)NC(=O)C(CC(=O)N1CCOCC1)Cc1cccc2ccccc12)C(O)C(=O)OC(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.