Using CCOC(=O)/C=C/c1ccc(N[C@@H]2CCN(C(=O)c3ccc(Cl)cc3)C2)cc1 to produce O=C(O)/C=C/c1ccc(N[C@@H]2CCN(C(=O)c3ccc(Cl)cc3)C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.