Using CC(C)(C)OC(=O)N[C@@H](Cc1ccc(C2=CC(=O)N(C(C)(C)C)S2(=O)=O)c(Br)c1)c1ncc(-c2ccccc2)n1COCC[Si](C)(C)C to produce CC(C)(C)OC(=O)N[C@@H](Cc1ccc(C2CC(=O)N(C(C)(C)C)S2(=O)=O)c(Br)c1)c1ncc(-c2ccccc2)n1COCC[Si](C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.