Using CCCC(=O)Cl, O=C(Nc1ccc(Cl)cn1)c1cc(Cl)ccc1NCC1CCNCC1 to produce CCCC(=O)N1CCC(CNc2ccc(Cl)cc2C(=O)Nc2ccc(Cl)cn2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.