Using COc1cc2ncnc(Cl)c2cc1OC, c1cc2cc3c(cc2[nH]1)CCN3 to produce COc1cc2ncnc(N3CCc4cc5[nH]ccc5cc43)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.