Using CCc1cc(C)cc(CC)c1C1=C(OC)C2C3C=CC(O3)C2C1=O to produce CCc1cc(C)cc(CC)c1C1=C(OC)C2C3CCC(O3)C2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.