Using O=C1CCc2c(cccc2N2CCNCC2)N1, O=C(Cl)c1cc(Cl)cc(Cl)c1 to produce O=C1CCc2c(cccc2N2CCN(C(=O)c3cc(Cl)cc(Cl)c3)CC2)N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.