Using CCOC(=O)/C=C/c1cnc(NC2CCN(C(=O)Nc3ccc(Cl)cc3)CC2)c(Cl)c1 to produce O=C(O)C=Cc1cnc(NC2CCN(C(=O)Nc3ccc(Cl)cc3)CC2)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.