Using CN(CC(=O)O)C(=O)OC(C)(C)C, N#CCCNc1cccc(Cl)c1 to produce CN(CC(=O)N(CCC#N)c1cccc(Cl)c1)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.