Using CCOC(=O)Cc1ccc(OC)c(Oc2ccc(Br)cc2CSC(C)C)c1 to produce CCOC(=O)Cc1ccc(OC)c(Oc2ccc(C(=O)OC)cc2CSC(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.