Using CN(CCO)c1ncc(C(=O)Nc2ccc(OC(F)(F)F)cc2)cc1Br, OB(O)c1cccnc1 to produce CN(CCO)c1ncc(C(=O)Nc2ccc(OC(F)(F)F)cc2)cc1-c1cccnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.