Using COc1ccc(C=C(NC(C)=O)C(=O)O)cc1OC, O=C([O-])[O-] to produce COC(=O)C(=Cc1ccc(OC)c(OC)c1)NC(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.