Using CCCC(=O)c1cc2c(OCC)cc(C(=O)OCC)nc2cc1C to produce CCCC(=O)c1cc2c(OCC)cc(C(=O)[O-])nc2cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.