Using C1CCNC1, Nc1nonc1-c1nc2cnccc2n1-c1cccc(C=O)c1 to produce Nc1nonc1-c1nc2cnccc2n1-c1cccc(CN2CCCC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.