Using CC1(C)OB(c2cc(C(F)(F)F)ccc2OCc2ccccc2)OC1(C)C to produce CC1(C)OB(c2cc(C(F)(F)F)ccc2O)OC1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.