Using C[C@H](O)[C@H](N=[N+]=[N-])c1cc(F)c(F)c(F)c1, CC(C)(C)OC(=O)OC(C)(C)C to produce C[C@H](O)[C@H](NC(=O)OC(C)(C)C)c1cc(F)c(F)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.