Using C1CCNC1, Nc1n[nH]c2c(-c3csc(C=O)c3)cn(-c3ccccc3Cl)c(=O)c12 to produce Nc1n[nH]c2c(-c3csc(CN4CCCC4)c3)cn(-c3ccccc3Cl)c(=O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.