Using COC(=O)[C@H](CC(C)C)N(C(=O)OCC(Cl)(Cl)Cl)c1onc(C)c1-c1ccc(N2CCN(C(=O)OC(C)(C)C)CC2)cc1 to produce COC(=O)[C@H](CC(C)C)Nc1onc(C)c1-c1ccc(N2CCN(C(=O)OC(C)(C)C)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.