Using CCOC(=O)COc1cccc2c1CC(NS(=O)(=O)c1ccccc1)CC2 to produce O=C(O)COc1cccc2c1CC(NS(=O)(=O)c1ccccc1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.