Using Clc1ccc2c(c1)NCC2, CN1CCN(c2ccc3ncnc(Cl)c3c2)CC1 to produce CN1CCN(c2ccc3ncnc(N4CCc5ccc(Cl)cc54)c3c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.