Using COC(=O)c1ccc2[nH]cc(C3=CCN(C(=O)OC(C)(C)C)CC3)c2c1 to produce COC(=O)c1ccc2[nH]cc(C3CCN(C(=O)OC(C)(C)C)CC3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.