Using CCOC(=O)CN1CCC(c2ccc(Cl)cc2)(c2ccc(Cl)cc2)C1=O to produce O=C(O)CN1CCC(c2ccc(Cl)cc2)(c2ccc(Cl)cc2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.