Using N#Cc1ccc2nc(-c3c(Cl)cccc3Cl)[nH]c2c1, NO to produce N=C(NO)c1ccc2nc(-c3c(Cl)cccc3Cl)[nH]c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.