Using COc1cc(C)c2[nH]c(=O)c3sccc3c2c1Br, C[Si](C)(C)CCOCCl to produce COc1cc(C)c2c(c1Br)c1ccsc1c(=O)n2COCC[Si](C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.