Using CC(=O)CNC1(c2ccc(OC(C)=O)cc2)Sc2ccccc2N(C)C1=O to produce CC(=O)CNC1(c2ccc(O)cc2)Sc2ccccc2N(C)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.