Using O=Cc1cc(-c2cncnc2)c(F)cc1F, C=C(Br)CCCO[Si](C)(C)C(C)(C)C to produce C=C(CCCO[Si](C)(C)C(C)(C)C)C(=O)c1cc(-c2cncnc2)c(F)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.