Using CCO, Cc1ccc(S(=O)(=O)OCC2CN(Cc3ccccc3)CCO2)cc1 to produce Cc1ccc(S(=O)(=O)OCC2CNCCO2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.