Using COC(=O)CCCc1ccc(S(=O)(=O)Nc2ccc(Cl)cc2)cn1 to produce O=C(O)CCCc1ccc(S(=O)(=O)Nc2ccc(Cl)cc2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.