Using CNCCN1CCOCC1, CC(C)C(NC(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)c1ccc(C(=O)O)cc1)C(C)C)C(=O)C(F)(F)C(F)(F)F to produce CC(C)C(NC(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)c1ccc(C(=O)N(C)CCN2CCOCC2)cc1)C(C)C)C(=O)C(F)(F)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.