Using O=C1CCN(c2ccc(-c3ccc(OCc4ccccc4)cc3)cc2)CC1, C[Si](C)(C)C(F)(F)F to produce OC1(C(F)(F)F)CCN(c2ccc(-c3ccc(OCc4ccccc4)cc3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.