Using CCN(CC)CC, CC(C)(C)OC(=O)NCCc1cc(F)c(C(=O)O)c(F)c1 to produce CC(C)(C)OC(=O)NCCc1cc(F)c(C(N)=O)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.