Using CC[C@]12CCC3=C(CCc4cc(OC)ccc43)C1=CCC2=O to produce CC[C@]12CCC3=C(CCc4cc(OC)ccc43)[C@@H]1CCC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.