Using O=C(O)CCN(CCc1ccc(Cl)c(Cl)c1)C(=O)OCc1ccccc1, NCCc1cccc(Cl)c1Cl to produce O=C(Cl)CCN(CCc1ccc(Cl)c(Cl)c1)C(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.