Using O=C(O)COc1cc2c(c(Cl)c1Cl)C1=CC(=O)CCC1(CCO)C2 to produce O=C([O-])COc1cc2c(c(Cl)c1Cl)C1=CC(=O)CCC1(CCO)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.