Using COC(=O)[C@@H]1CN(C(=O)OC(C)(C)C)CCN1C(=O)N[C@H]1C[C@@H]1c1ccccc1 to produce O=C1[C@@H]2CNCCN2C(=O)N1[C@H]1C[C@@H]1c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.