Using O=C(Cl)c1ccccc1, CC1(C)O[C@H]2[C@H](n3cnc4c(N)ncnc43)O[C@@](CO)(N=[N+]=[N-])[C@H]2O1 to produce CC1(C)O[C@H]2[C@H](n3cnc4c(NC(=O)c5ccccc5)ncnc43)O[C@@](CO)(N=[N+]=[N-])[C@H]2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.