Using CC[C@@](C)(Nc1ccnc(-c2c[nH]c3ncccc23)n1)C(=O)O, NCC(F)(F)F to produce CC[C@@](C)(Nc1ccnc(-c2c[nH]c3ncccc23)n1)C(=O)NCC(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.