Using O=S(=O)(O)O, CC(Cc1ccncc1)C(=O)Nc1ccc2sc3ccccc3c2c1 to produce CC(Cc1ccncc1)C(=O)Nc1ccc2c(c1)-c1ccccc1S2(=O)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.