Using COc1c2c(c(N(C(C)=O)C(C)=O)n(C)c1=O)CCN(Cc1ccc(F)cc1)C2=O to produce COc1c2c(c(NC(C)=O)n(C)c1=O)CCN(Cc1ccc(F)cc1)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.