Using O=C([O-])O, N=C(c1ccccc1)C1CCN1C(c1ccccc1)c1ccccc1 to produce O=C(c1ccccc1)C1CCN1C(c1ccccc1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.