Using COc1cc(C2(O)CCN(C(=O)[C@H](NC(=O)OC(C)(C)C)C(C)C)CC2(C)C)ccc1Cl to produce COc1cc(C2(O)CCN(C(=O)[C@H](N)C(C)C)CC2(C)C)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.