Using O=C(O)Cc1c[nH]c2ccc(Br)cc12, CC(C)OB(OC(C)C)OC(C)C to produce O=C(O)Cc1c[nH]c2ccc(B(O)O)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.