Using C[Si](C)(C)CCOCCl, FC(F)(F)c1cnc(-c2ncc(Br)cc2Cl)[nH]1 to produce C[Si](C)(C)CCOCn1cc(C(F)(F)F)nc1-c1ncc(Br)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.