Using O=C(c1cccc(Br)c1)C(F)(F)F, CC1(C)OBOC1(C)C to produce CC1(C)OB(c2cccc(C(O)C(F)(F)F)c2)OC1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.