Using O=C(c1ccc2c(cnn2-c2ccc(F)cc2)c1)C(F)(F)F, C[Si](C)(C)c1nccs1 to produce OC(c1ccc2c(cnn2-c2ccc(F)cc2)c1)(c1cncs1)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.