Using Cc1cccc(-c2nn3c(c2Br)CCC3)n1, CC(C)OB(OC(C)C)OC(C)C to produce Cc1cccc(-c2nn3c(c2B(O)O)CCC3)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.