Using c1ccc(N2CCNCC2)cc1, O=c1sc2cc(Cl)ccc2n1CCCCl to produce O=c1sc2cc(Cl)ccc2n1CCCN1CCN(c2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.