Using CCCC(=O)O, O=C(OC1C2=C(SCCS2)C(=O)N1c1ccc2ccc(Cl)nc2n1)N1CCNCC1 to produce CCCC(=O)N1CCN(C(=O)OC2C3=C(SCCS3)C(=O)N2c2ccc3ccc(Cl)nc3n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.