Using Clc1ccc(OCc2ccccc2)c(C2=C(Br)CCC2)c1, CC(C)OB(OC(C)C)OC(C)C to produce OB(O)C1=C(c2cc(Cl)ccc2OCc2ccccc2)CCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.