Using F[B-](F)(F)F, CCC(Oc1cccc(Oc2ccc3c(-c4ccc(C(F)(F)F)cc4)noc3c2)c1)C(=O)O to produce CCC(Oc1cccc(Oc2ccc3c(-c4ccc(C(F)(F)F)cc4)noc3c2)c1F)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.