Using CC(C)Cn1c(N)nc2ccc(B(O)O)cc21, Fc1ccc(-c2nc3n(c2Br)CCC3)cc1 to produce CC(C)Cn1c(N)nc2ccc(-c3c(-c4ccc(F)cc4)nc4n3CCC4)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.