Using CCN(Cc1cncc(B2OC(C)(C)C(C)(C)O2)c1C)C(=O)OC(C)(C)C, COC(=O)c1ccnc(Br)c1 to produce CCN(Cc1cncc(-c2cc(C(=O)OC)ccn2)c1C)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.