Using O=C1CCC(=O)N1Br, C=C(O[Si](C)(C)C)c1c(CC)nc(CCC)n1Cc1ccc(Br)cc1F to produce CCCc1nc(CC)c(C(=O)CBr)n1Cc1ccc(Br)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.