Using O=S(Cl)Cl, COc1ccc2c(C(O)C3CCCCC3)c(C)oc2c1 to produce COc1ccc2c(C(Cl)C3CCCCC3)c(C)oc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.