Using COC(=O)c1cc(-c2c(I)cnn2C)cs1, CC[Si](CC)(CC)C(F)(F)F to produce COC(=O)c1cc(-c2c(C(F)(F)F)cnn2C)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.