Using CC(C)(C)[Si](C)(C)Oc1ccc2c(Br)ccc(N)c2c1, CSCC[C@@H](NC(=O)OC(C)(C)C)C(=O)O to produce CSCC[C@@H](NC(=O)OC(C)(C)C)C(=O)Nc1ccc(Br)c2ccc(O[Si](C)(C)C(C)(C)C)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.