Using CC(=O)O[C@H]1CC[C@H]2[C@@H]3CC[C@H]4CC(C)=CC[C@]4(C)[C@H]3CC[C@]12C to produce CC1=CC[C@@]2(C)[C@@H](CC[C@@H]3[C@@H]2CC[C@]2(C)[C@@H](O)CC[C@@H]32)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.