Using COc1ccc(C(=O)c2cccc3c2ccn3S(=O)(=O)c2ccc(C)cc2)cc1 to produce O=C(c1ccc(O)cc1)c1cccc2[nH]ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.