Using CC(C)(C)[O-], COc1ccc(OCC(=O)c2ccc(Cl)c(Cl)c2)cc1 to produce C=C(COc1ccc(OC)cc1)c1ccc(Cl)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.