Using CCOC(=O)C1(N2CCN(S(=O)(=O)c3ccccc3Cl)CC2)CCC1 to produce CCOC(=O)C1(N2CCN(S(=O)(=O)c3ccccc3Cl)CC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.