Using C1CCNC1, CCn1c(=O)c(C#N)c(Cl)c2ccc(C)nc21 to produce CCn1c(=O)c(C#N)c(N2CCCC2)c2ccc(C)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.