Using Cc1cc(-c2cn(CCCCCl)c(=O)n(C(=O)c3ccccc3)c2=O)ccn1 to produce Cc1cc(-c2cn(CCCCCl)c(=O)[nH]c2=O)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.