Using CCOC(=O)c1cnc(CCc2ccccc2OCc2ccccc2)n(C)c1=O to produce COC(=O)c1cnc(CCc2ccccc2OCc2ccccc2)n(C)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.