Using CCOC(=O)c1nc(OC(C)=O)c(OC(C)=O)c2c1CCN(Cc1ccc(F)c(Cl)c1)C2=O to produce COC(=O)c1nc(O)c(O)c2c1CCN(Cc1ccc(F)c(Cl)c1)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.