Using CCOC(=O)CNC1C(=O)N(CC(=O)OC(C)(C)C)c2ccccc2SC1c1ccccc1 to produce CCOC(=O)CNC1C(=O)N(CC(=O)O)c2ccccc2SC1c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.