Using CC[C@]12CC=C3c4ccc(OC)cc4CC[C@H]3[C@@H]1CC[C@@H]2OC(C)(C)C to produce CC[C@]12CC[C@@H]3c4ccc(OC)cc4CC[C@H]3[C@@H]1CC[C@@H]2OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.