Using Cc1nc(-c2ccc(C(C)(C)O)cc2)c2cnc3c(c(Br)cn3[Si](C(C)C)(C(C)C)C(C)C)n12 to produce Cc1nc(-c2ccc(C(C)(C)O)cc2)c2cnc3[nH]cc(Br)c3n12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.