Using ClCCNCCCl, Nc1ccc2[nH]cc3c(=O)n(-c4ccccc4)nc-3c2c1 to produce O=c1c2c[nH]c3ccc(N4CCNCC4)cc3c-2nn1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.