Using O=S(=O)(O)O, CC(Oc1ccc(COc2ccccc2)cc1)C(N)=O to produce CC(Oc1ccc(COc2ccccc2)cc1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.