Using CC(C)(C)OC(=O)NC(C)(C)C(=O)N1CCN(C(=O)OCc2ccccc2)CC1 to produce CC(C)(N)C(=O)N1CCN(C(=O)OCc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.