Using COc1ccc(N2CCN(C(=O)OC(C)(C)C)[C@@H](Cc3ccccc3C)C2)cc1OC1CCCC1 to produce COc1ccc(N2CCN[C@@H](Cc3ccccc3C)C2)cc1OC1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.