Using Cc1nc2ccccc2nc1SCc1ccccc1N(C)C, O=C(OO)c1cccc(Cl)c1 to produce Cc1nc2ccccc2nc1S(=O)Cc1ccccc1N(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.