Using CI, COCn1c2c(c3cc(Cl)ccc31)CCC(C(C)(CO)S(=O)(=O)c1ccccc1)C2 to produce COCn1c2c(c3cc(Cl)ccc31)CCC(C(C)(COC)S(=O)(=O)c1ccccc1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.