Using c1ccc(CN2CCNCC2)cc1, COc1ccc(-c2ccccc2)cc1 to produce c1ccc(CN2CCN(c3ccc(-c4ccccc4)cc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.