Using CC1(NCc2c[nH]c3nccc(C(=O)O)c23)CCN(C(=O)OC(C)(C)C)CC1 to produce CC(C)(C)OC(=O)N1CCC(C)(N2Cc3c[nH]c4nccc(c34)C2=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.