Using CC(C)(C)OC(=O)N[C@H](c1cccc(Br)c1)[C@H](O)c1cccnc1 to produce O=C1N[C@@H](c2cccc(Br)c2)[C@H](c2cccnc2)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.