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