Using CC(C)(C)C(O)C(Oc1ccc(Cl)cc1Cl)Oc1ccc(Cl)cc1Cl to produce CC(C)(C)C=C(Oc1ccc(Cl)cc1Cl)Oc1ccc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.