Using Cn1cnc(Nc2ncc(Cl)c(NC3CCC4(CCNCC4)CC3)n2)c1, N#CCC(=O)O to produce Cn1cnc(Nc2ncc(Cl)c(NC3CCC4(CC3)CCN(C(=O)CC#N)CC4)n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.