Using O=C(O)c1cc2cc(Cl)ccc2[nH]1, CC(C)(C)OC(=O)N[C@@H]1CCCC[C@H]1N to produce CC(C)(C)OC(=O)N[C@@H]1CCCC[C@H]1NC(=O)c1cc2cc(Cl)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.