Using Nc1ccc(Cl)cc1, O=C([O-])c1cccc2c1CCN(Cc1ccncc1)C2 to produce O=C(Nc1ccc(Cl)cc1)c1cccc2c1CCN(Cc1ccncc1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.