Using O=C(O)c1ccccc1Oc1cc(Cl)ccc1Cl, c1ccc2c(c1)CCCN2 to produce O=C(c1ccccc1Oc1cc(Cl)ccc1Cl)N1CCCc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.