Using COc1cccc(OC)c1C(C)=O, CCOC(=O)C(=O)[O-] to produce CCOC(=O)C(=O)C=C([O-])c1c(OC)cccc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.