Using CI, COC(=O)c1ccccc1C(=O)c1ccc(N)c(NC(=O)OC(C)(C)C)c1 to produce CN(C(=O)OC(C)(C)C)c1cc(C(=O)c2ccccc2C(=O)O)ccc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.