Using Cn1ncc(-c2nn(C)c3ncnc(N4CCC4)c23)c1Br, O=Cc1ccc(B(O)O)cc1 to produce Cn1ncc(-c2nn(C)c3ncnc(N4CCC4)c23)c1-c1ccc(C=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.