Using CCOC(=O)CCC(=O)CBr, CC(=O)Oc1cccc(S[Si](C(C)C)(C(C)C)C(C)C)c1 to produce CCOC(=O)CCC(=O)CSc1cccc(OC(C)=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.