Using Clc1cccc(N2CCNCC2)c1Cl, O=C1CCc2ccc(OCCCCCl)cc2N1 to produce O=C1CCc2ccc(OCCCCN3CCN(c4cccc(Cl)c4Cl)CC3)cc2N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.