Using C=C[C@H]1CCN(C(=O)OC(C)(C)C)[C@@H]1CO, CC(C)=O to produce C=C[C@H]1CCN(C(=O)OC(C)(C)C)[C@@H]1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.