Using O=C(Cl)Cc1ccccc1Br, NC[C@H]1O[C@@H](n2cc(Br)c(N)nc2=O)C[C@@H]1O to produce Nc1nc(=O)n([C@H]2C[C@H](O)[C@@H](CNC(=O)Cc3ccccc3Br)O2)cc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.