Using COc1cccc(-c2ccccc2Br)c1, CCn1c2ccccc2c2ccc(B3OC(C)(C)C(C)(C)O3)cc21 to produce CCn1c2ccccc2c2ccc(-c3ccccc3-c3cccc(OC)c3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.