Using O=C(O)c1cc(=O)c2cc3c(c(CC(O)CCl)c2o1)CCCC3 to produce O=C([O-])c1cc(=O)c2cc3c(c(CC(O)CCl)c2o1)CCCC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.