Using CCCCCCCS, Cc1ccc(S(=O)(=O)OCc2nc3ccccc3c(OCc3ccccc3)c2C)cc1 to produce CCCCCCCSCc1nc2ccccc2c(OCc2ccccc2)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.