Using CC(=O)[O-], CCOC(=O)C(=Cc1coc(C)c1)CC(=O)O to produce CCOC(=O)c1cc(OC(C)=O)c2oc(C)cc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.