Using CCOC(=O)COc1cccc2c1CCc1sc(S(=O)CC(c3ccccc3)c3ccccc3)nc1-2 to produce O=C(O)COc1cccc2c1CCc1sc(S(=O)CC(c3ccccc3)c3ccccc3)nc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.