Using COC(=O)C(C)(C)CN1C[C@@]2(CCC[C@H](Cn3cnc4ccc(C#N)cc43)C2)OC1=O to produce CC(C)(CN1C[C@@]2(CCC[C@H](Cn3cnc4ccc(C#N)cc43)C2)OC1=O)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.