Using Clc1ncc(CCc2cccnc2)c2ccccc12, Nc1ccc(Cl)cc1 to produce Clc1ccc(Nc2ncc(CCc3cccnc3)c3ccccc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.