Using COc1ccc(S(=O)(=O)N(Cc2ccccc2)c2cc(C)ccc2C(=O)OCc2ccccc2)cc1 to produce COc1ccc(S(=O)(=O)N(Cc2ccccc2)c2cc(C)ccc2C(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.