Using Cc1[nH]cc(C#N)c1-c1ccc(Cl)cc1C(=O)c1ccccc1Cl to produce Cc1[nH]cc2c1-c1ccc(Cl)cc1C(c1ccccc1Cl)=NC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.