Using CC(Oc1ccc(Cl)cc1Cc1cc(Cl)ccc1OCC(=O)OCc1ccccc1)C(=O)N1CCCC1 to produce CC(Oc1ccc(Cl)cc1Cc1cc(Cl)ccc1OCC(=O)O)C(=O)N1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.