Using CN(C)C=O, COC(OC)c1ccc2c(ccn2S(=O)(=O)c2ccc(C)cc2)c1 to produce COC(OC)c1ccc2c(c1)cc(C=O)n2S(=O)(=O)c1ccc(C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.