Using COCCOCCOc1ccc2c(c1)S(=O)(=O)N(Cc1ccccc1)C2=O to produce COCCOCCOc1ccc2c(c1)S(=O)(=O)NC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.