Using OC(c1ccccc1)C1CCNCC1, ClCCCN(c1ccccc1)c1ccccc1 to produce OC(c1ccccc1)C1CCN(CCCN(c2ccccc2)c2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.