Using CN(C)C(=O)CCl, CC(C)(C)OC(=O)N[C@H]1CCc2c(C#N)cccc21 to produce CN(C)C(=O)CN(C(=O)OC(C)(C)C)[C@H]1CCc2c(C#N)cccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.