Using CC(C)(C)N, O=C(O)c1ccc2[nH]cc(CCCCN3CCN(c4ccccc4)CC3)c2c1 to produce CC(C)(C)NC(=O)c1ccc2[nH]cc(CCCCN3CCN(c4ccccc4)CC3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.