Using O=c1[nH]c2c(s1)CCNCC2, O=C(O)c1cc2ncc(Cl)cn2n1 to produce O=C(c1cc2ncc(Cl)cn2n1)N1CCc2[nH]c(=O)sc2CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.