Using C[C@H](NC(=O)OC(C)(C)C)c1nc2ccn(C)c2cc1N1CCCC(O)C1, O=C1NC(=O)c2ccccc21 to produce C[C@H](NC(=O)OC(C)(C)C)c1nc2ccn(C)c2cc1N1CCCC(N2C(=O)c3ccccc3C2=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.