Using CC(=O)Oc1cc2c(cc1I)[C@H]1CC[C@]3(C)C(=O)CC[C@H]3[C@@H]1[C@@H](OC(C)=O)C2 to produce CC(=O)O[C@H]1Cc2cc(O)c(I)cc2[C@H]2CC[C@]3(C)C(=O)CC[C@H]3[C@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.