Using NCCOc1ccc2c(ccn2S(=O)(=O)c2ccccc2)c1, CC(=O)Cl to produce CC(=O)NCCOc1ccc2c(ccn2S(=O)(=O)c2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.