Using ClCc1ccc(Cl)cc1, O=C1CCc2cc(N3CCNCC3)ccc2N1 to produce O=C1CCc2cc(N3CCN(Cc4ccc(Cl)cc4)CC3)ccc2N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.