Using ClCc1csc(-c2ccccc2)n1, COc1cccnc1N1CCCNCC1 to produce COc1cccnc1N1CCCN(Cc2csc(-c3ccccc3)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.