Using COC(=O)CBr, CC(C)(C)[SiH2]OC(C)(C)c1cn[nH]c1 to produce COC(=O)Cn1cc(C(C)(C)O[SiH2]C(C)(C)C)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.