Using CC1=NCC2CC(=O)N(c3ccccc3)c3cc(Cl)ccc3N12 to produce Cc1ncc2n1-c1ccc(Cl)cc1N(c1ccccc1)C(=O)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.