Using CC(C)(C)OC(=O)N1CCN(c2cccc3c2NC(=O)CC3)CC1, CC(C)(C)[O-] to produce CN1C(=O)CCc2cccc(N3CCN(C(=O)OC(C)(C)C)CC3)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.