Using CC1([C@H]2CC[C@H]3[C@@H]4CC[C@H]5CC(=O)C(=CO)C[C@]5(C)[C@H]4C(=O)C[C@]23C)OCCO1 to produce C[C@@H]1C[C@@]2(C)[C@@H](CC[C@H]3[C@@H]4CC[C@H](C5(C)OCCO5)[C@@]4(C)CC(=O)[C@@H]32)CC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.