Using C=CCBr, CC1(C)OB(c2ccc3c(c2Cl)NCCO3)OC1(C)C to produce C=CCN1CCOc2ccc(B3OC(C)(C)C(C)(C)O3)c(Cl)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.