Using CC(=O)N1c2ccc(-c3ccc(C(=O)O)cc3)cc2[C@H](Nc2ccc(C#N)cn2)C[C@@H]1C, CC(C)(C)OC(=O)NCCN to produce CC(=O)N1c2ccc(-c3ccc(C(=O)NCCNC(=O)OC(C)(C)C)cc3)cc2[C@H](Nc2ccc(C#N)cn2)C[C@@H]1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.