Using ClC(Cl)(Cl)Cl, Cc1c(Cc2ccccc2)nnc(N2CCC(C(=O)NCC#N)CC2)c1C to produce Cc1c(Cc2ccccc2)nnc(N2CCC(c3ncc(Cl)[nH]3)CC2)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.