Using CC(C)(C)OC(=O)COc1cc(C(=O)N2CCN(c3ccccc3C(C)(C)C)CC2)on1 to produce CC(C)(C)c1ccccc1N1CCN(C(=O)c2cc(OCC(=O)O)no2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.