Using Cc1noc(C2(NC(=O)OC(C)(C)C)CC2)c1B1OC(C)(C)C(C)(C)O1, COC(=O)c1cc(Cl)ccc1Br to produce COC(=O)c1cc(Cl)ccc1-c1c(C)noc1C1(NC(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.