Using COc1cc(CC(=O)N[C@H]2CC[C@@H](C=C(C)C)CC2)ccc1O to produce COc1cc(CC(=O)N[C@H]2CC[C@@H](CC(C)C)CC2)ccc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.